Question

could someone please check these?
1) x^2-6x+8=(x-4)(x-2)
2) x^2+x-6=(x+2)(x-3)
3) x^2-5x+4=(x-4)(x-1)
4) x^2+x-2=(x+2)(x-1)
5) x^2-2x-8=(x+4)(x-2)
6) x^2+x-12=(x-3)(x+4)
7) x^2-x-12=(x+3)(x-4)
8) x^2-3x-4=(x-4)(x+1)
9) x^2-3x+2=(x-2)(x-1)
10) x^2-8x+16=(x-4)(x-4)
11) x^2-2x-15=(x+3)(x-5)
12) x^2+5x+6=(x+3)(x+2)
13) x^2-5x+6=(x-3)(x-2)
14) x^2+x-20=(x-4)(x+5)
15) x^2-x-2=(x+1)(x-2)
16) x^2+4x-5=(x-1)(x+5)
17) x^2+2x-8=(x-2)(x+4)
18) x^2+3x-10=(x-2)(x+5)

Answer 1

1)x^2-6x+8=(x-4)(x-2) correct
2)x^2+x-6=(x+3)(x-2) incorrect

Answer 2

3)x^2-5x+4=(x-4)(x-1) correct

Answer 3

4) x^2+x-2=(x+2)(x-1) correct

Answer 4

so #2 is (x-2)(x+3)

Answer 5

5)x^2-2x-8=(x+4)(x-2) incorrect

Answer 6

No.2 is (x+3)(x-2)

Answer 7

no.5 is (x+2)(x-4)

Answer 8

try doing these like you would any normal sum:
x+3
x-2
------
then multiply each one as follows:
-2 by +3 = -6
then
-2 by x is -2x
then x by +3 = 3x
and x by x = x^2
then collecting these you get -2x +3x = x
so the whole thing is x^2 +x -6

Answer 9

You are correct with No.5 (x+4)(x-2)

Answer 10

Do you need me to check them all, or do you think you can now check them yourself?

Answer 11

i've got it from here thank you soooo much you're a life saver (my final is tomorrow) i would give you 5 more medals if i could!!

Answer 12

No worries, as long as you're okay, good luck in the finals!