Question

4m² - 5m when m = -4

Explanation:

Step1: Substitute m=-4 into the expression

$4(-4)^2 - 5(-4)$

Step2: Calculate $(-4)^2$

$4(16) - 5(-4)$

Step3: Compute multiplications

$64 + 20$

Step4: Add the results

$84$

Answer:

84