Question

What is equivalent to this formula: y=3(x+5)(x-2)

Answer 1

y = 3*(x^2) + 9x -30

Explanation:

y=3(x+5)(x-2)

y = (3*x + 3*5) * (x - 2)

y = (3*x + 15) * (x - 2)

y = 3*x*x + 3*x*(-2) + 15*x + 15*(-2)

y = 3*(x^2) - 6x + 15x - 30

y = 3*(x^2) + 9x -30