Find the length of the altitude to the hypotenuse round the answer to the nearest tenth if needed

Which expression is equivalent to 2x^2+7x+4?

Factor this polynomial completely x^2-64

What is the expression in factored form? 3x^2 + 18x + 24 a. 3(x+2)(x+4) b. 3(x-2)(x+4) c. 3(x-2)(x-4) d. 3(x+2)(x-4)