Expand:
(5 - 6x)^2
a. -36x^2 - 60x + 25
b. 36x^2 - 30x + 25
c. -36x^2 - 30x + 25
d. 36x^2 - 60x + 25
To expand (5 - 6x)^2, we use the formula for squaring a binomial, which is (a - b)^2 = a^2 - 2ab + b^2. In this case, a = 5 and b = 6x.
So, when we substitute into the formula, we get:
(5 - 6x)^2 = 5^2 - 2(5)(6x) + (6x)^2
= 25 - 60x + 36x^2
= 36x^2 - 60x + 25
Therefore, the correct expansion for (5 - 6x)^2 is d. 36x^2 - 60x + 25.