化简 log_{10}(a)(a^3+2a^2+a(a+1)2)

解答

化简

lo g_{10} (a) (a^{3} + 2 a^{2} + a (a + 1) 2)

lo g_{10} (a) (a^{3} + 4 a^{2} + 2 a)

求解步骤

lo g_{10} (a) (a^{3} + 2 a^{2} + a (a + 1) \cdot 2)

= lo g_{10} (a) (a^{3} + 2 a^{2} + 2 a (a + 1))

展开

2 a (a + 1) : 2 a^{2} + 2 a

= lo g_{10} (a) (a^{3} + 2 a^{2} + 2 a^{2} + 2 a)

e x p an d (x - a)^{2} (x - b) (x - c)

e x p an d (- 5 p - 3 q)^{3}

s im pl i f y \frac{9 ^{x} - ( a ^{3} ) ^{x} - a + 5}{4}

s im pl i f y x + y - 1.5 y - 2.5 x

s im pl i f y \frac{( 5 ^{n} \cdot 5 ^{3} + 5 ^{n} )}{( 5 ^{n} \cdot 5 ^{- 1} \cdot 5 ^{1} )}