What two square numbers have a difference of 40?

Urgent? will give brainliest to the first correct answer what is the area of the figure?

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?

What is the method used to multiply binomials using foil?