Question

What is 10 x b to the power of 3 ÷ -10 when b = 2

Answer 1

$\sf 10\times b^3 \div -10$

Plug in 2 for 'b':

$\sf 10\times (2)^3 \div -10$

Simplify the exponent:

$\sf 10\times 8 \div -10$

Multiply:

$\sf 80 \div -10$

Divide:

$\sf\boxed{\sf -8}$