kody69372 kody69372

04-04-2020
Mathematics

contestada

Solve for x. Write both solutions, separated by a
comma.
5x^2 + 2x -- 7 = 0

Respuesta :

Officialalehpeter Officialalehpeter

04-04-2020

Answer: 1 or -7/5

Step-by-step explanation:

5x2+2x-7=0

Factorise

Factors of -35 that will give +2 is +7&-5

5x2+7x-5x-7=0

X(5x+7)-1(5x+7)=0

(X-1)(5x+7)=0

X-1=0

X=1

5x+7=0

5x= -7

X= -7/5

X= 1 or-7/5

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