Question

express y = -2x² - 4x + 7 in the form of perfect square and find the maximum points.

Answer 1

Answer:

The first term is, x2 its coefficient is 1 .

The middle term is, +4x its coefficient is 4 .

The last term, "the constant", is -7

Step-1 : Multiply the coefficient of the first term by the constant 1 • -7 = -7

Step-2 : Find two factors of -7 whose sum equals the coefficient of the middle term, which is 4 .

-7 + 1 = -6

-1 + 7 = 6

Step-by-step explanation: