Question

factor using the difference of 2 squares
1.x^2-36
2.x^2+4
3.4x^2-25
4.y^2-1

Answer 1

1.(x-6)(x+6)

Answer 2

\[x^2+4x+4-4x=(x+2)^2-(2\sqrt{x})^2=(x+2-2\sqrt{x})(x+2+2\sqrt{x})\]

Answer 3

3.(2x-5)(2x+5)

Answer 4

4.(y_1)(y+1)

Answer 5

ok so you guys are confusing me uzma its the same thing as before

Answer 6

which 1?

Answer 7

its gunna start out as factoring out the GCF and i have to do the difference of 2 squares method, or trial and error and i dont know how to do it.