Question

Find the product. -7(-a^2)^2(-b^3)

Answer 1

Answer:

The required product is $7a^{4}b^{3}$

Step-by-step explanation:

Given,

$-7(-a^{2} )^{2}(-b)^{3}$

=$-7(-a)^{2*2}*(-b^{3})$     [∴$(a^{m})^{n}=a^{m*n}$]

=$7a^{4}b^{3}$                  [∵ $(-a)^{m}=a^{m}$, when m is even and $(-a)^{m}=-a^{m}$, when m is odd]

∴$-7(-a^{2} )^{2}(-b)^{3}$ = $7a^{4}b^{3}$

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