Which expression is equivalent to 7a4 - 28?

a) -7(a2 + 2)(a2 + 2)

b) 7(a2 + 2)(a2 - 2)

eliminate

c) 7(a2 + 2)(a2 + 2)

d) 7(a2 - 2)(a2 - 2)

ANSWER

B.

EXPLANATION

The given expression is

First factor 7 to get,

Write the expression in the parenthesis as difference of two squares:

Recall that:

We apply this to our expression to get:

i believe it is d.) buddhism and e.) hinduism

the homeowners insurance cost for a 115,000 wood frame house is 80,500.

step-by-step explanation:

it is given that the coverage rate for wood frame house is 0.7.

the value of wood frame house is 115,000.

.

homeowners insurance cost for a 115,000 wood frame house is

therefore the homeowners insurance cost for a 115,000 wood frame house is 80,500.