Simplify the polynomial expression: (4x3 + 10x2 − 3x + 15) + (−2x2 + x −2) answer options: 4x3+12x2−4x+13 8x2+4x3+3x+17 4x3 +8x2−2x+13 6x3+10x2−4x+13

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system