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Name _____________________________

Date ___________________

Polynomials
(Answer ID # 0532189)
Solve by factoring.

											8
									13			7   -
											3	5
										4   -	2
								6   -
				12				11
	9											1
											10

 

down 1. 49x2 - 4 = 0 Answer: (? + 2)(7x - 2) x =    -2 7   ,   2 7	down 2. 25x2 - 36 = 0 Answer: (5x + 6)(5x - 6) x =    -1 1 5   ,   ? 1 5
down 3. x2 - 6x - 55 = 0 Answer: (x - ?)(x + 5) x =    11   ,   -5	down 4. x2 + 10x - 24 = 0 Answer: (x - 2)(x + 12) x =    2   ,   ?
down 5. 9x2 - 42x + 49 = 0 Answer: (3x - 7)(3x - 7) x =    ? 1 3	down 6. x2 + 11x + 30 = 0 Answer: (x + 6)(x + 5) x =    ?   ,   -5
down 7. 25x2 - 144 = 0 Answer: (5x - 12)(5x + 12) x =    2 2 5   ,   ? 2 5	down 8. x2 - 9x + 8 = 0 Answer: (x - ?)(x - 1) x =    8   ,   1
down 9. x2 - 12x + 20 = 0 Answer: (x - ?)(x - 2) x =    10   ,   2	across 3. x2 - 144 = 0 Answer: (x + ?)(x - 12) x =    -12   ,   12
across 4. 81x2 + 180x + 100 = 0 Answer: (9x + 10)(9x + 10) x =    ? 1 9	across 6. x2 - 121 = 0 Answer: (x - 11)(x + 11) x =    11   ,   ?
across 8. 64x2 + 16x + 1 = 0 Answer: (? + 1)(8x + 1) x =    -1 8	across 10. 81x2 - 100 = 0 Answer: (? - 10)(9x + 10) x =    1 1 9   ,   -1 1 9
across 11. x2 + 12x + 36 = 0 Answer: (x + ?)(x + 6) x =    -6	across 12. x2 + 8x + 16 = 0 Answer: (x + ?)(x + 4) x =    -4
across 13. x2 - 6x + 9 = 0 Answer: (x - ?)(x - 3) x =    3

 

Answer Key

											8	x
									3			-
											1	2
										-	1
								-	1	1
				4				6		2
	1											7
	0										9	x

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