Question

Write (2X -5)^2 as a tri nominal

Answer 1

(2X -5)^2 as a tri nominal:

2x+2x-10

Answer 2

4x² - 20x + 20

Explanation:

(a - b)² = a² - 2ab + b²

a = 2x ; b = 5

(2x- 5)² = (2x)² - 2*2x*5 + 5² {(2x)² = 2x * 2x = 4x²}

= 4x² - 20x + 25