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Factorise the quadratic polynomial by splitting the middle term:
x2 + 14x + 45
  • a)
    (x + 9) (x+5)
  • b)
    (x - 9) (x+5)
  • c)
    (x-9) ( x-5)
  • d)
    (x+9) ( x-5)
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Factorise the quadratic polynomial by splitting the middle term:x2+ 14...
Because by multiplying 1st and 3rd term and by adding middle term with the number which should be multiplied by 1st and 3rd term is 45
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Community Answer
Factorise the quadratic polynomial by splitting the middle term:x2+ 14...
=x^2+14x+45
=x^2+9x+5x+45
=x(x+9)+5(x+9)
=(x+9)(x+5)

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Factorise the quadratic polynomial by splitting the middle term:x2+ 14x + 45a)(x + 9) (x+5)b)(x - 9) (x+5)c)(x-9) ( x-5)d)(x+9) ( x-5)Correct answer is option 'A'. Can you explain this answer?
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