-8 + 7x = x - 506x = -42x = -6
(7x + 6)(49x^2 - 42x + 36)
hujkImproved anwser:2x+6 = 7x-42x-7x = -4-6-5x = -10x = 2
-8 + 7(6x) + 3 = -7x - 5 - 1-8 + 42x + 3 = -7x - 5 - 142x - 8 + 3 = -7x - 5 + (-1)42x - 5 = - 7x - 642x + 7x - 5 + 5 = - 7x + 7x - 6 + 549x = -149x/49 = -1/49x = -1/49
49x^2 + 77x + 30 Improved answer: 7x+57x+6 When simplified: = 64x+6
-8 + 7x = x - 506x = -42x = -6
42x
(7x + 6)(49x^2 - 42x + 36)
hujkImproved anwser:2x+6 = 7x-42x-7x = -4-6-5x = -10x = 2
-8 + 7(6x) + 3 = -7x - 5 - 1-8 + 42x + 3 = -7x - 5 - 142x - 8 + 3 = -7x - 5 + (-1)42x - 5 = - 7x - 642x + 7x - 5 + 5 = - 7x + 7x - 6 + 549x = -149x/49 = -1/49x = -1/49
49x^2 + 77x + 30 Improved answer: 7x+57x+6 When simplified: = 64x+6
5x-6+23-7x 5x-7x+23-6 (rearranged) -2x+17 (simplification).
x3 + 13x2 + 42x = x(x2 + 13x + 42) = x(x2 + 6x + 7x + 42) = x[x(x + 6) + 7(x + 6)] = x(x + 7)(x + 6)
7x = 42 Divide both sides by '7'. Hence x = 42/7 x = 6 The answer!!!!!
-7x + 6 + 7x - 2 = 4
(4)(2)+7x-28+7x-27x-6.This expression cannot be simplified further nor solved (because it is not equal to anything).
x3 + 13x2 + 42x = x(x + 6)(x + 7).