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irga5000 [103]
3 years ago
6

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

Mathematics
2 answers:
Leya [2.2K]3 years ago
7 0

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!

soldi70 [24.7K]3 years ago
3 0

Answer:

The firs one is the right one

Step-by-step explanation:

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