jshurtleff22 jshurtleff22
  • 01-12-2020
  • Mathematics
contestada

Which expression is equal to (−4x2−1)(2x2+3)?




−8x4−14x2−3

−8x4−10x2+3

−8x2−14x−3

8x4−14x2+3

Respuesta :

1236169
1236169 1236169
  • 01-12-2020

Answer:

The first one:

−8x4−14x2−3

Step-by-step explanation:

(-4•2-1)(2•2+3)

-4•2 = -8

-8 - 1 = -9

(-9)(2•2+3)

2•2 = 4

4+3 = 7

(-9)(7) = -63

Now we find the one that equals -63:

-8•4-14•2-3

(-8•4)-14•2-3

-32-14•2-3

-32-(14•2)-3

-32-28-3

(-32-28)-3

-60-3

-60-3 = -63

BAM! THE ANSWER!

Answer Link
junimatzdorff junimatzdorff
  • 18-12-2020

Answer:

The firs one is the right one

Step-by-step explanation:

Answer Link

Otras preguntas

What was the final temperature of the metal
How would you describe the taking of twenty-minute shower during a drought
Carrie, Shondra, and Tamika decided to make hand-made invitations for their party. Carrie and Shondra got together on Saturday and made 16 invitations altogethe
please help with this
What’s 2744 dividend by 14
Which distribution will have a positive skew? o {1,2,3,4,5,5,5,6,6,7,8} o {1,2,3,4,5,6,7,8} o {1,2,2,3,3,3,4,4,5,6,7,8} O {1,2,3,4,4,5,5,5,6,6,7,8,9}
What is the answer to 15+5(4) over 17-12? Please help I've tried it 8x's.
In 2011 Sara invested $889.00 into a bank account for her newborn son. The account adds 5% interest each year. What will the accrued value be in 2029? Round to
What is the Meaning of the word Diversity?
An artificial cell has is made up of 30% sugar and 70% water. It is placed in a solution that has 65% sugar. What will happen to the cell and why? It will stay