Question

Directions:For questions 12-16 simplify using the given replacement valued. There should be no decimals, convert all decimals to fractions. (Do not change whole numbers)

Answer 1

Let's simplify the following expression:

$\text{ -4ab - 6b}^2\text{ : a = -3 and b = -4}$

We get,

$\text{ -4ab - 6b}^2$$\text{ = -4(-3)(-4) - 6(-4)}^2$$\text{ = -4(12) - 6(16)}$$\text{ = -48 - 9}6$$\text{ = -}144$

The answer is -144