How do you factor b^2-81

1 answer:

7 0

The middle number is 0 and the last is -81Factoring means we want something like(b+_)(b+_)We need two numbers that add together to get and Multiply to get -81which are 9 and -9:9+-9 = 0 and 9*-9 = -81
Fill in the blanks in
(b+_)(b+_)
with 9 and -9 to get...(b+9)(b−9)
The answer is : (b+9)(b−9)

You might be interested in

Simplify the expression 8(w-4)

storchak [24]

8(w-4)
8w-32
Solution : 8w-32

4 0

3 years ago

Read 2 more answers

Which represents g(x), the translated function?

Alex

Answer:

Im pretty sure its A but not 100% sure-

Step-by-step explanation:

7 0

2 years ago

Please help me find the area

Mariulka [41]

Answer/Explain:

Okay to find the area you need to do base x length so in this case 11ft x 6ft. So 11 x 6 = 66 and there is your answer! I hope this helped

8 0

2 years ago

The volume of a cylinder is given by the formula V= πr^2h, where r is the radius of the cylinder and h is the height. Suppose a

AfilCa [17]

Answer:

V=π*(2x^3+35x^2+176x+192)units^3

Step-by-step explanation:

V=πr^2h

r=x+8

h=2x+3

V=π*(x+8)^2*2x+3

=π*(x^2+16x+64)*2x+3

=π*(2x^3+32x^2+128x+3x^2+48x+192)

=π*(2x^3+35x^2+176x+192)

Volume of the cylinder=π*(2x^3+35x^2+176x+192)units^3

7 0

3 years ago

Read 2 more answers

Find all numbers whose absolute value is 5.

melamori03 [73]

Answer:

5 , -5

Step-by-step explanation:

c'mon this is easy. the absolute value of a number is that numbers distance away from zero on the number line. 5 and -5 are the only numbers that are five intergers away from zero.

3 0

2 years ago