Answer:
b
Step-by-step explanation:
(a - b)² = a² - 2ab + b²
(2x - 6)² = (2x)² - 2*2x *6 + 6²
= 4x² - 24x + 36
Answer: b
(2x-6)^2
(2x-6)(2x-6)
(2 X times 2x = 4x^2
(2x times -6 = -12x
-6 times 2x= -12x
-6times -6 = 36
So you get 4x^2-12x-12x+36
Combine the x's. You get 4x^2 -24x+36
Answer:A
23/50= 0.46 *100= 46%
56m..................
a² + b² = c²
a² + 9² = 12²
a² + 81 = 144
a² = 63
a = √63
68
