What two numbers multiply to -84 and add to 5

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asked Dec 12, 2017 60.8k views

2 Answers

Lukasz Koziara · Answer 1 · 2017-12-14T03:02:02+0000

From the top of your head you know 12 * 7 = 84.

But let's rearrange it to suit.

12 * - 7 = -84

12 + (-7) = 12 - 7 = 5.

So the two numbers are 12 and -7.

What two numbers multiply to -84 and add to 5

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