Other questions in this quiz

2. x2+9x+20=0

  • (x+9) (x+20)
  • (x+4) (x+5)
  • (x+6) (x-7)

3. x2-6x+9=0

  • (x+2) (x-10)
  • (x-3) (x-3)
  • (x-6) (x+9)

4. x2-11x+10=0

  • (x-9) (x+7)
  • (x-1) (x-10)
  • (x-11) (x+10)

5. x2+6x+9=0

  • (x+3) (x+3)
  • (x+6) (x+9)
  • (x+5) (x+9)

Comments

Rayman08

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it good coz it just a quick test and if you faill you know what you need to brush up on ............

sophia

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Rayman08 wrote:

thanks :)

Jack Coupland

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Hey, 3 and 4 are wrong. The answer to 3 is (x-3)(x-3) and the answer to 4 is (x-1)(x-10). For a negative value of 'b' with a positive value of 'c' there must be a pair of negatives. I devised an algorithm ;)

aamir

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yeah you are right jack..

sophia

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it's always supposed to be one is positive and one is negative 

but i changed it!

Nathan

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easy

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