Two numbers multiply to 12 and add to -8

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?