3 years ago

Multiply (3b 2+ 4b + 8)(-2b 2+ b + 10).

1 answer:

4 0

Answer: -30b^2+76b+80
Explanation:
Multiply the second parenthesis by each term from the first parenthesis:
3b•2(-2•2+b+10)+4b•(-2b•2+b+10)+8(-2b•2+b+10)
Then distribute 3b•2 through the parenthesis
-24b^2+6b^2+60b+4b•(-2b•2+b+10)+8(-2b•2+b+10)
Then collect like terms
-30b^2+60b+40b-32b+8b+80
Collect like terms=
-30b+76b+80

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The domain is the horizontal extent of the graph. Here, it goes from about x=-4 to about x = 1.5.

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Multiply (3b​ 2​+ 4​b​ + 8)(-2​b​ 2​+ ​b​ + 10).

Multiply (3b 2+ 4b + 8)(-2b 2+ b + 10).