0
7x^2 + 3x - 4 = 0
Factor
( 7x - 4)(x + 1) = 0
7x - 4 = 0
7x = 4
x = 4/7
&
x + 1 = 0
x = -1
lenpollock
Wiki User
∙ 14y ago(7x - 4)(x + 1 ) making x = either 4/7 or -1
Check: (7 x 16/49) + 12/7 = 16/7 + 12/7 = 4 ok
7 + (-3) = 4 ok...and there you have it.
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