yesyesno1321 yesyesno1321

04-03-2021
Mathematics

contestada

What is 5x²+7x-9-4x²-x+18?

Respuesta :

ssdandreasd ssdandreasd

04-03-2021

X^2+6x+9 should be correct

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arulmalu arulmalu

04-03-2021

Answer:

5X²+7X-9-4X²-X+18

5X²-4X²+7X-X+18-9

X²+6X+9 =0

X²+(3X+3X)+(3×3)=0

ALL FACTORS ARE =3,3 that is pdt of factor 3×3 =9 sum =3+3 =6

(X+3) ( X+3) =0

X+3 =0

X=-3

ANS = X=-3

Step-by-step explanation:

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