Step-by-step explanation:
Given
7x² + 19x - 6 = 0
7x² + (21 - 2) x - 6 = 0
7x² + 21x - 2x - 6 = 0
7x( x + 3 ) - 2 ( x + 3 ) = 0
(x + 3 ) ( 7x - 2 ) = 0
Either
x + 3 = 0
x = - 3
Or,
7x - 2 = 0
7x = 2
x = 2 /7
So
x = - 3 and 2/7
Hope it will help :)
Answer:
x= -3,/2/7
Step-by-step explanation:
split the second term in 7x^2 + 19x-6 into two terms 7x^2+21x-2x-6=0
Factor out common terms in the first two terms7x(x+3)-2(x+3)=0
(x+3)(7x-2)=0
Factor out the common term x+3 hope that help x= -3,/2/7
