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Rashid [163]
3 years ago
9

Multiply and show all steps please!!

Mathematics
2 answers:
Mazyrski [523]3 years ago
5 0

the answer is 80 take the positive and negative and use the sign change rule

garik1379 [7]3 years ago
4 0

Answer:

50

Step-by-step explanation:

First, find the square roots.

\sqrt{-16} =4i

\sqrt{-64} =8i

Remember: i stands for \sqrt{-1}

Then use the FOIL method to multiply.

(3+4i)(6-8i)

18-24i+24i-32i²

i²= -1, so :

18+32

50

I have no idea what the other person did, but its wrong.

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2 years ago
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3 years ago
DUE TODAY!!!!!!!!!!!!!!!
andreyandreev [35.5K]

Answer:

1) b would be easier because it’s 1/2bh and since the base of 10 is easily divisible by 2 you don’t have to deal with fractions.

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