Wednesday

October 1, 2014

October 1, 2014

Posted by **Kathy** on Wednesday, September 3, 2014 at 6:37pm.

f(x)=4(x-1)^-8

(x-1) (x-1)=

4(x^-2x+1)-8

4x^-2x-8

- algebra 2 -
**Steve**, Wednesday, September 3, 2014 at 7:13pmUse a number with exponents.

4(x-1)^2 - 8

4(x^2-2x+1)-8

4x^2-8x+4-8

4x^2-8x-4

You must multiply the 4 by each term in the parentheses, not just the first one.

4(2+6) = 4*2 + 4*6 = 8+24 = 32

NOT

4(2+6) = 4*2+6 = 8+6 = 14

after all, 2+6=8, and 4*8 = 32

- algebra 2 -
**Reiny**, Wednesday, September 3, 2014 at 7:13pmf(x) = 4(x-1)^2 - 8

= 4(x^2 - 2x + 1) - 8

= 4x^2 - 8x + 4 - 8

= 4x^2 - 8x - 4

**Answer this Question**

**Related Questions**

college algebra--need help please!! - write the standard form of the equation ...

math (algebra one ) - Write an equation of the line that passes through each ...

Algebra - Write in general form - ax^2+bx+c Vertex: (-1,-1) point on the graph...

algebra 2 - write the general form of a sine curve equation.

calculus - Find an equation oif the line that contains the two points. Write the...

Algebra 2 Mannn - 9x^2-y^2-72x+8y+119. how do i change this equation from ...

Pre Calc - Derive the equation of the locus of all points that are equidistant ...

Algebra - I know that standard form is Ax+By=C, but I'm not really sure how to ...

Algebra - I'm working midpoints, distance, circles and standard form and ...

algbra - Write the general form of the equation f(x)=4(x-1)^-8