What is the value of this expression?
4.3 · 33.623

Solve the system of equations. y= 2x y= x^2 - 15

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Me! i will mark brainliest! i don't get polynomials and all that other stuff. so this question is really hard. multiply and simplify.(x - 4) (x^2 – 5x – 6)show your