What is the vertex of f(x) = 5x2 + 20x – 16?

answer:

10+20x-16

20x-16+10

20x-6

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

go on the tube you might find some information there