What is the product?
(7x2)(2x + 5) (*-4x-9)
14x5 – x4 - 46x3 - 58x2 - 20x-45
14x6 – 56x5 – 91x4 – 140x3 - 315x2
14x? - 56x6 – 126x5 + 35x4 - 140x3 - 315x2
0 14x12 - 182x + 35x4 - 455x2

Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.