展开 (x-y^2=0)(0.3)

解答

展开

(x - y^{2} = 0) (0.3)

0.3 x - 0.3 y^{2} = 0

求解步骤

(x - y^{2} = 0) (0.3)

= (0.3) (x - 0 = y^{2})

使用分配律:

a (b - c) = ab - a c

a = (0.3), b = x, c = y^{2} = 0

(0.3) x - (0.3) y^{2} = 0

乘开

(0.3) x - (0.3) y^{2} : 0.3 x - 0.3 y^{2}

0.3 x - 0.3 y^{2} = 0

e x p an d \frac{2 x ^{2} - x - 13}{x ( x + 1 ) ( x - 1 )}

e x p an d (34 - 3 x)^{3}

e x p an d \frac{( x + 1 ) ^{5}}{x ^{6} + 2 x ^{4} + x ^{2}}

e x p an d \frac{33 x ^{2} + 9 x + 1}{( 3 - x ) ( 7 x ^{2} + 2 )}

e x p an d (cot (2 x) + 1) (sin (2 x) - 1)