How to solve it and like what do i need to do to solve this question

-.07

Step-by-step explanation:

the absolute value of 7 is 7. then you have 10x+7 so subtract 7 from both sides of the equal sign. then you have 10x=-7 so divide by ten on both sides of the equal sign and that leaves you with -.07

- 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

c

step-by-step explanation:

i think because what else can be a sample of every member