Which of the following represents the simplified form of the expression below? (x3 + 4x2 + 12x − 13) − (-2x3 − x2 + 3x + 1)

3x3 + 5x2 + 9x - 14

Step-by-step explanation:

(x3 + 4x2 + 12x − 13) − (-2x3 − x2 + 3x + 1)

= (x3 + 4x2 + 12x − 13) + (2x3 + x2 - 3x - 1)      distribute the -1

= (x3 + 2x3) + (4x2 + x2) + (12x - 3x) + (-13 - 1)   rearrange the terms

= 3x3 + 5x2 + 9x - 14                                            combine like terms

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

tap for more

m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0