Question

-4x (-7x3 + 4x2 + 8x – 6)

Answer 1

solve the bracket first

Answer 2

-4x(-21+8+8x-6)
-4x(-19+8x)
76x-32x^2

Answer 3

sorry I copy and pasted...its not 7 times 3 its 7x raised to the third power. same with 4 squared

Answer 4

so it should read -4x (7x^3 + 4x^2 +8x -6)

Answer 5

what do u have to do with the equa? just solve?

Answer 6

yes but I dont know if -4x times 7x^3 would be 21x^4 and so on. what do i do with the exponents?

Answer 7

4 times 7 is 28 not 21...that was my bad

Answer 8

its gona look like -28x^4-16x^3-32x^2+24x

Answer 9

ok cool so when multiplying, you add the exponents?

Answer 10

they multiply as well, take a look at this.. http://www.purplemath.com/modules/exponent.htm

Answer 11

thank you so much! :)

Answer 12

no problem.. ^^