Factor and check - 7x^2 - 2x + 5 = 0

Asked by AnneS2 on 14 Jun 09:47

Last updated by anonymous on 15 Jun 12:58

Answered by CherieS on 15 Jun 12:58

- 7x^2 - 2x + 5 = 0

-1(7x^2+2x-5)

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

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

Check:

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

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

-1 (7x^2 -5x +7x -5 ) =0

-1(7x^2+2x-5)=0

-7x^2-2x+5=0