Question

If y=2x^2-5x-3 find the value of y if x= -1​

Answer 1

y = 4

Explanation:

First we want to raise -1 to the power of 2

y = 2 * 1 - 5 * -1 - 3

Multiply

2 - 5 * -1 - 3

Multiply

y = 2 + 5 - 3

y = 7 - 3

y = 4