Search 80,000+ tutors
Ask a question

Answers by Karla S.

x ^ 2 - 5 x + 6 (answer)

To factor this, first take the first expression x2. The only way to multiply 2 variables together and get that is x*x, so we know the first variable in each is x.  (x+?)(x+?).  Since we have a negative second term and a positive third term we know that both will be negative.  So...

whats foil (answer)

FOIL stands for First Outer Inner Last.  It is used to multiply 2 binomials    For example (x+4)(x-1) F(irst) (take the first term of each binomials and multiply them) - (x)*(x) = x2 O(uter) (take the outer term of each binomials and multiply them) - (x)*(-1)...

y=x(x+5)(x-8) (answer)

The first thing you do is multiply the right side out.  So, x(x2 - 8x + 5x - 40) -> x(x2 - 3x - 40) -> x3 - 3x2 - 40x So y =  x3 - 3x2 - 40x