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sergiy2304 [10]
3 years ago
11

Simplify the expression: (1 − 5i)(3 + 7i). 38 + 8i −32 + 8i 38 − 8i −32 − 8i

Mathematics
1 answer:
photoshop1234 [79]3 years ago
3 0
Your answer is 38-8i because what you do is 1 times 3 and get 3 then 1 times 7i and get 7i then you do -5i times 3 and you get -15i then -5i times 7i and you get -35i2 and the square will cancel out the negative and make it 35 then add that to the 3 and you get 38 then take the -15i +7i and get -8 do your answer is 38-8i
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erica [24]
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Im not going to use that formula you gave me, its wrong.

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450 x 1.69 = 760.5 Jules

This is also the wrong subject btw

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