Question

Help me out factor this please. using the different kinds of factoring

1.2a^2+10-12
2.49r^2+126rs+81s^2
3.27a^3+64b^3
4.35c^2+34cd-21d^2
5.84m^4-n^8
6.10ac-5ad+6bc-3bd
7.5d^2+6d+1
8.a^4-a16
9.3x^2-9x-30
10.6x^2-7xy-3y^2

Answer 1

Any ideas for #1?

Answer 2

@Unimamami ?

Answer 3

$$2a^2+10-12$$

Answer 4

wrong given in no 5 it was supposed to be 81

so the answer is (9m^2+n^4) (9m^2-n^4) ?

Answer 5

no. 1 is (2x+3)(1x+4)? i used general trinomial

Answer 6

Multiply $$(9m^2+n^4) (9m^2-n^4)$$do you get $$81m^4-n^8$$

Answer 7

yes

Answer 8

Then you know you are right :)

Answer 9

yes