Question

Factor the Following Polynomials:
x²-81
x²-13x+36
Which polynomial is a special product and why?

Answer 1

does someone want to walk me through these

Answer 2

apply the formula
\[a ^{2}-b ^{2}=(a-b)(a+b)\]

Answer 3

???

Answer 4

\[x ^{2}-(9)^{2}=(x-9)(x+9)\]

Answer 5

how did you get 9

Answer 6

9^2=81

Answer 7

oh okay now what

Answer 8

\[x ^{2}-13x+36=x ^{2}-9x-4x+36\]

Answer 9

hope you can make factors further......

Answer 10

I'm still lost idk what work your doing but its not like how its normally done

Answer 11

Are you not comfortable with factorization methods?

Answer 12

\[x ^{2}-13x+36=x ^{2}-9x-4x+36=x(x-9)-4(x-9)=(x-4)(x-9)\]