x2+7x+3 = 0
Using the quadratic equation formula the solutions are:-
x = -6.541381265 or x = -0.4586187349
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x2 + 7x = 2x2 + 6 x2 - 2x2 + 7x = 6 -x2 +7x - 6 = 0 or alternatively x2 - 7x + 6 = 0
Assuming that what you're looking for is the values of x: x2 + 7x = 8 x2 + 7x - 8 = 0 (x + 8)(x - 1) = 0 x is equal to either -8 or 1.
x2-7x+12 = 0 (x-3)(x-4) = 0x=3,4
None because without an equal it is not an equation. But if it was in the form of x2+7x+12 = 0 then it would have 2 solutions which are x = -3 and x = -4
x2- 7x + 6 = 0 factor, (x-6)(x-1) = 0 x = 6 x = 1