factorise x^2+100x-7500
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Answered by
2
(x+150)(x-50) is the correct answer
HOPE YOU UNDERSTOOD
theeta:
the easy method is to multiply the coeff of x^2 (1 in this case) with the constant term 7500 and find the factors that add to coeff of x term (+100 in this case). you'll get +150 and -50 .... product of which is -7500 and sum is +100
Answered by
14
Interesting Question! :) ✌
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x^2 + 100x - 7500
= x^2 + ( -100 + 75 ) x - 7500
= x^2 - 100x + 75x - 7500
= x ( x - 100 ) + 75 ( x - 100)
= ( x + 75) ( x - 100)
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➡ Correct Answer = ( x + 75) ( x - 100) ✔
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