Question

Which expression is equivalent to (2m4)(5m8)? A 7m12 B 10m12 C 7m32 D 10m32

Answer 1

10m¹²

Explanation:

Law of exponents:

`\boxed{a^m*a^n = a^(m+n)}`

In exponent multiplication, if bases are same, add the exponents.

2m⁴ * 5m⁸ = (2*5) * m⁽⁴⁺⁸⁾

= 10m¹²