7x^2=8-10x factorisation
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Answered by
2
7x²+10x-8=0
7x²-4x+14x-8=0
x(7x-4)+2(7x-4)=0
(x+2)(7x-4)=0
x+2=0 or 7x-4=0
x=-2 or x= 4/7
x=-2 or 0.57
7x²-4x+14x-8=0
x(7x-4)+2(7x-4)=0
(x+2)(7x-4)=0
x+2=0 or 7x-4=0
x=-2 or x= 4/7
x=-2 or 0.57
Answered by
3
7x² = 8 - 10x
7x² + 10x - 8 = 0
7x² + 14x - 4x - 8 = 0
7x(x + 2)-4(x + 2) = 0
(x+2) (7x-4) = 0
7x² + 10x - 8 = 0
7x² + 14x - 4x - 8 = 0
7x(x + 2)-4(x + 2) = 0
(x+2) (7x-4) = 0
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