kaylathestuff kaylathestuff

19-04-2021
Mathematics

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Find two numbers that multiply to 16 and also add to -8

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surjithayer10otahza surjithayer10otahza

19-04-2021

Answer:

-4,-4

Step-by-step explanation:

let the numbers be x and y.

x+y=-8

y=-x-8

xy=16

x(-x-8)=16

-x²-8x=16

x²+8x+16=0

x²+4x+4x+16=0

x(x+4)+4(x+4)=0

(x+4)(x+4)=0

x=-4,-4

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