4(x-1)-2(3x+5)=-3x+1

解答

4 (x - 1) - 2 (3 x + 5) = - 3 x + 1

x = 15

求解步骤

4 (x - 1) - 2 (3 x + 5) = - 3 x + 1

展开

4 (x - 1) - 2 (3 x + 5) : - 2 x - 14

- 2 x - 14 = - 3 x + 1

将

14

到右边

- 2 x = - 3 x + 15

将

3 x

para o lado esquerdo

x = 15

\frac{- 2 ( x + 1 )}{( 3 )} = 2 - x

- x^{2} - 8 x - 12 \geq 0

s im pl i f y p (x) \frac{x + 2}{x ^{2} + x}

s im pl i f y (\frac{1}{2})^{- \frac{1}{2}}

f a c t or x^{3} + 14 x^{2} + 49 x