Maths-

General

Easy

Question

# Find the area of a square field with side (5𝑥 − 8).

Hint:

- Area of square is given by (side)2.
- Area of square = (a)2
- Identity: (a – b)2 = a2 – 2ab + b2

## The correct answer is: Hence, area of square field is 25x2 – 80x + 64 sq. units.

### Answer

- Step by step explanation:

- Given:

Side (a) = (5x – 8) units.

- Step 1:

Calculate the area of square field,

Area = (5x – 8)^{2}

As,

(a – b)^{2} = a^{2} – 2ab + b^{2}

Therefore,

Area = (5x)^{2} – 2(5x) (8) + (8)^{2}

Area = 25x^{2} – 80x + 64 sq. units.

- Final Answer:

Hence, area of square field is 25x^{2} – 80x + 64 sq. units.

- Given:

^{2}= a

^{2}– 2ab + b

^{2}

Therefore,

^{2}– 2(5x) (8) + (8)

^{2}

^{2}– 80x + 64 sq. units.

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