展开 (4t^3)(t^{2+5})

解答

展开

(4 t^{3}) (t^{2 + 5})

4 t^{10}

求解步骤

(4 t^{3}) (t^{2 + 5})

去除括号:

(a) = a

= 4 t^{3} t^{2 + 5}

使用指数法则:

a^{b} \cdot a^{c} = a^{b + c}

t^{3} t^{2 + 5} = t^{3 + 2 + 5}

= 4 t^{3 + 2 + 5}

数字相加:

3 + 2 + 5 = 10

= 4 t^{10}

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