(5x-4)+(5x-4)+(3x+58)=180, what is x

x=10

Step-by-step explanation:

1) combine ALL like terms

5x-4+5x-4+3x+58=180

5x+5x+3x=13x

-4-4+58=50

13x+50=180

2) subtract both sides by 50

13x+50-50=180-50

13x=130

divide both sides by "13"

x=10

Hope this Helps!

:

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