Question

(4-x)^2-2x pls help to solve it

Answer 1

Answer:

Given : (4 - x)² - 2x

• Idenitity : (a - b)² = a² + b² - 2ab

Here, a = 4, b = x

→ (4)² + (x)² - 2(4)(x) - 2x

→ 16 + x² - 8x - 2x

→ 16 + x² - 10x

Hence, the answer is x² - 10x + 16.

If you want the above equation to be further solved, then using Middle Term Factorisation.

→ x² - 8x - 2x + 16

→ x(x - 8) - 2(x - 8)

→ (x - 2)(x - 8)

Hence, the final answer is (x - 2)(x - 8).