Can someone help please I need this done in 20 minutes and no links I have been getting them all day so please help me with this

For which intervals is the function positive? select each correct answer. [-6, -4) (6, 8] (-4, 0) (0, 6)

Rena used the steps below to evaluate the expression , when . step 1: substitute into the expression. step 2: simplify the parentheses. step 3: evaluate the power to a power. step 4: use reciprocals and find the value. in which step did rena make the first error?

To factor 4x2-25, you can first rewrite the expression as: