Maths-

General

Easy

Question

# (𝑥 + 9)(𝑥 + 9) =

Hint:

### The methods used to find the product of binomials are called special products.

Multiplying a number by itself is often called squaring.

For example (*x* + 3)(*x* + 3) = (*x* + 3)2

## The correct answer is: 81

### (𝑥 + 9)(𝑥 + 9) = x(x + 9) + 9(x + 9)

= x(x) + x(9) + 9(x) + 9(9)

= x^{2} + 9x + 9x + 9^{2}

= x^{2} + 18x + 81

Final Answer:

Hence, the simplified value of (𝑥 + 9)(𝑥 + 9) is x^{2} + 18x + 81.

^{2}+ 9x + 9x + 9

^{2}

^{2}+ 18x + 81

Final Answer:

Hence, the simplified value of (𝑥 + 9)(𝑥 + 9) is x

^{2}+ 18x + 81.

This question can be easily solved by using the formula

(a + b)2 = a2 + 2ab + b2

### Related Questions to study

Maths-

### Find the area of the rectangle.

### Find the area of the rectangle.

Maths-General

Maths-

### The table below shows the distance a train traveled over time. How can you determine the equation that represents this relationships.

### The table below shows the distance a train traveled over time. How can you determine the equation that represents this relationships.

Maths-General

Maths-

### Simplify: 4x^{2}(7x -5) -6x^{2}(2 -4x)+ 18x^{3}

### Simplify: 4x^{2}(7x -5) -6x^{2}(2 -4x)+ 18x^{3}

Maths-General

Maths-

### (𝑎 + (−3))^{2} =

This question can be easily solved by using the formula

(a - b)2 = a2 - 2ab + b2

### (𝑎 + (−3))^{2} =

Maths-General

This question can be easily solved by using the formula

(a - b)2 = a2 - 2ab + b2

Maths-

### Use the table method to multiply a binomial with a trinomial.

(−3𝑥^{2} + 1) (2𝑥^{2} + 3𝑥 − 4)

### Use the table method to multiply a binomial with a trinomial.

(−3𝑥^{2} + 1) (2𝑥^{2} + 3𝑥 − 4)

Maths-General

Maths-

### (𝑥 − 2)^{2} =

This question can be easily solved by using the formula

(a - b)2 = a2 - 2ab + b2

### (𝑥 − 2)^{2} =

Maths-General

This question can be easily solved by using the formula

(a - b)2 = a2 - 2ab + b2

Maths-

### The length and breadth of a rectangle are (2x – 8) cm and (5x – 7) cm. Find the area of the rectangle.

### The length and breadth of a rectangle are (2x – 8) cm and (5x – 7) cm. Find the area of the rectangle.

Maths-General

Maths-

### How can you tell from the angle measures of a triangle which side of the triangle is the longest? The shortest?

### How can you tell from the angle measures of a triangle which side of the triangle is the longest? The shortest?

Maths-General

Maths-

### (𝑎 + 𝑏)^{2} =

### (𝑎 + 𝑏)^{2} =

Maths-General

Maths-

### Use the table method to multiply a binomial with a trinomial.

(2𝑥 − 5) (−3𝑥^{2} + 4𝑥 − 7)

### Use the table method to multiply a binomial with a trinomial.

(2𝑥 − 5) (−3𝑥^{2} + 4𝑥 − 7)

Maths-General

Maths-

### Simplify:

(ii) (3a + 2b) (5a + 7b)

### Simplify:

(ii) (3a + 2b) (5a + 7b)

Maths-General

Maths-

### A square icon image has a border that has an area of 704 square pixels and is 4 pixels wide. What is the area of the square image?

### A square icon image has a border that has an area of 704 square pixels and is 4 pixels wide. What is the area of the square image?

Maths-General

Maths-

### Determine the GCF and write the expression in factored form.

### Determine the GCF and write the expression in factored form.

Maths-General

Maths-

### Use distributive property to find the product of two polynomials.

(5𝑥 − 4) (2𝑥 + 1)

### Use distributive property to find the product of two polynomials.

(5𝑥 − 4) (2𝑥 + 1)

Maths-General

Maths-

### Simplify:

(i) (2m^{3} + 2m) (4m - 2)

### Simplify:

(i) (2m^{3} + 2m) (4m - 2)

Maths-General