Question

# Write the product in the standard form. (0.4𝑥 + 1.2)^{2}

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: 1.44

### (0.4x + 1.2)^{2} can be written as (x + )^{2} which can be further written as (x + )(x + )

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

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

= 0.16x^{2} + 0.96x + 1.44

Final Answer:

Hence, the simplified value of (0.4𝑥 + 1.2)^{2 }is 0.16x^{2} + 0.96x + 1.44.

^{2}+ 0.96x + 1.44

Final Answer:

Hence, the simplified value of (0.4𝑥 + 1.2)

^{2 }is 0.16x

^{2}+ 0.96x + 1.44.

This question can be easily solved by using the formula

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

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