4x2 + 16x + 36 is equivalent to?
a) 4(x2 + 4x + 4)
b) 4(x2 + 4x + 9)
c) 4x(x + 4 + 9)
d) 4 (x2 + 6x + 9)

B

Step-by-step explanation:

Factor out 4 as a GCF.

Look carefully at the numbers you have left.

That's it really

x=30

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it