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pishuonlain [190]
3 years ago
8

Helppppppp pleaseeeee ill give brainliest answer pleaseeeee helppp me

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
4 0

Answer:

Floor 48

Right and left rectangles 80

Two triangles 24

48+80+24 =152

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What is the product of a+3 and −2a2+15a+6b2?
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Answer:

c. 2a3+9a2+45a+6ab2+18b2

Step-by-step explanation:

(a+3) + (−2a2+15a+6b2)

Using distributed p. with and a and 3

a(−2a2) + a(15a) +a(6b2)        and       3(−2a2) + 3(15a) + 3(6b2)

= -−2a3 + 15a2 + 6ab2                          = -6a2 + 45a + 18b2

Now add like terms and put in standard form.

15a2+(-6a2) = 9a2  

And equals

-2a3 + 9a2+45a+6ab2+18b2

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