Solve the system

2x + y = -3

-2y = 6 + 4x

write each equation in slope-intercept form.

y = bx+

y =

done

intro

The slope-intercept form of both equations is .

Step-by-step explanation:

The given system of equations is

The slope-intercept form of an equation is

where, m is slope and b is y-intercept.

We need to write each equation in slope-intercept form.

First equation is

         (Given)

          (Subtract 2x on both sides)

The slope-intercept form of first equation is .

Second equation is

        (Given)

        (Divide both sides by -2)

The slope-intercept form of first equation is .

Both equation have same slope intercept form it means both lines coincide each other.

So, the given system of equation have infinitely many solutions.

step-by-step explanation:

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form