Question

Simplify: (−2a2b) • (4a5b2)

Answer 1

Answer:  $-8a^7\ b^3$

Step-by-step explanation:

Given expression : $(-2a^2b)\cdot(4a^5b^2)$

$=-2\times4\times a^2\times a^5\times b\times b^2$

The product law of exponent :-

$x^n\times x^m=x^{n+m}$

Using the product law of exponent for the given expression we have:-

$=-8\times a^{2+5}\times b^{1+2}\\\\=-8a^7\ b^3$

Thus , the given expression is simplified as $-8a^7\ b^3$

Answer 2

(−2a^2b) • (4a^5b^2)

-2 *4 * a^2 * a^5 * b*b^2  

multiply the numbers add the exponents

-8 a^6 b^3