展开 (f(x)=2,x^4-3x^2+5x-6)-(g(x)=2x^2-7x+10)

解答

展开

(f (x) = 2, x^{4} - 3 x^{2} + 5 x - 6) - (g (x) = 2 x^{2} - 7 x + 10)

(f (x) = 2, x^{4} - 3 x^{2} + 5 x - 6) - g (x) = 2 x^{2} + 7 x - 10

求解步骤

(f (x) = 2, x^{4} - 3 x^{2} + 5 x - 6) - (g (x) = 2 x^{2} - 7 x + 10)

= (2 =, x^{4} f (x) - 3 x^{2} + 5 x - 6) - (2 = x^{2} g (x) - 7 x + 10)

- (g (x) = 2 x^{2} - 7 x + 10) : - g (x) = 2 x^{2} + 7 x - 10

(f (x) = 2, x^{4} - 3 x^{2} + 5 x - 6) - g (x) = 2 x^{2} + 7 x - 10

s im pl i f y (m E + m (E - U))^{2}

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e x p an d sin (2 x) (cos (5 x) cos (3 x) - sin (3 x) sin (x))

e x p an d x (1 + 3 x^{3})

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