mirror of
https://gitlab.com/magicalsoup/Highschool.git
synced 2025-01-23 16:11:46 -05:00
Update Factoring Quiz.md
This commit is contained in:
parent
196acfc078
commit
526d5bc381
@ -1,6 +1,57 @@
|
||||
## Level 1
|
||||
# Level 1
|
||||
|
||||
a. $`2x^`4 - 32$
|
||||
- $`= 2(x^4-16)`$
|
||||
- $`= 2((x^2-4)(x^2+4)`$
|
||||
- $`= 2((x+2)(x-2)(x^2+4))`$
|
||||
## $`2x^4 - 32`$
|
||||
- $`= 2(x^4-16)`$
|
||||
- $`= 2((x^2-4)(x^2+4)`$
|
||||
- $`= 2((x+2)(x-2)(x^2+4)) \\`$
|
||||
|
||||
## $`2x^2+11x-21`$
|
||||
- $`=2x^2+11x-21`$
|
||||
- $`\quad \quad 2 \quad -3`$
|
||||
- $`\quad \quad 1 \quad \quad 7`$
|
||||
- $` = (2x+3)(x+7)`$
|
||||
|
||||
## $`x^3y^2 + 2x^2y^2-3xy^2`$
|
||||
- $`=xy^2(x^2+2x-3)`$
|
||||
- $`\quad \quad \quad \quad 1 \quad -1`$
|
||||
- $`\quad \quad \quad \quad 1 \quad \quad 3`$
|
||||
- $`= xy^2(x-1)(x+3)`$
|
||||
|
||||
# Level 2
|
||||
|
||||
## $`4x^4-9x^2+30x-25`$
|
||||
- $`=4x^4-(9x^2-30x+25)`$
|
||||
- $`\quad \quad \quad \quad \quad \quad 3 \quad -5`$
|
||||
- $`\quad \quad \quad \quad \quad \quad 3 \quad -5`$
|
||||
- $`= 4x^4 - (3x-5)^2`$
|
||||
- $`= (2x^2-3x+5)(2x^2+3x-5)`$
|
||||
- $`\quad \quad \quad \quad \quad \quad \quad \quad \quad 2 \quad \quad 5`$
|
||||
- $`\quad \quad \quad \quad \quad \quad \quad \quad \quad 1 \quad -1`$
|
||||
- $` = (2x^2-3x+5)(2x+5)(x-1)`$
|
||||
|
||||
## $`3(x-y)^2 - 5x + 5y - 2`$
|
||||
- $`= 3(x-y)^2 -5(x-y) - 2`$
|
||||
- $`\text{Let } a = (x-y)`$
|
||||
- $`= 3a^2 - 5a - 2`$
|
||||
- $` \quad \quad 3 \quad \quad 1`$
|
||||
- $` \quad \quad 1 \quad -2 `$
|
||||
- $`= (3a+1)(a-2)`$
|
||||
- $`=(3(x-y)+1)(x-y-2)`$
|
||||
- $`=(3x-3y+1)(x-y-2)`$
|
||||
|
||||
# Level 3
|
||||
|
||||
## $`x^8 - 17x^4 - 48`$
|
||||
- $`\text{Let } y = x^4`$
|
||||
- $`= y^2 - 13y - 48`$
|
||||
- $`\quad \quad 1 \quad \quad 3`$
|
||||
- $`\quad \quad 1 \quad -16`$
|
||||
- $`=(y+3)(y-16)`$
|
||||
- $`=(x^4+3)(x^4-16)`$
|
||||
- $`=(x^4+3)(x^2-4)(x^2+4)`$
|
||||
- $`=(x^4+3)(x-2)(x+2)(x^2+4)`$
|
||||
|
||||
## $`10(3x-5)^4(2x+3)^5 + 4x^2(3x-5)^3(2x+6)^6`$
|
||||
- $`=(2x+3)^5(3x-5)^3(10(3x-5) + 4x^2(2x+3))`$
|
||||
- $`=(2x+3)^5(3x-5)^3(30x+50+8x^3+12x^2)`$
|
||||
- $`=(2x+3)^5(3x-5)^3(2(4x^3+6x^2+ 15x -25))`$
|
Loading…
Reference in New Issue
Block a user