1. Solve the following quadratic equations by factorisation.
(2) x² + x - 20 = 0
Answers
Answered by
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Step-by-step explanation:
by splitting middle term method
2x^2+5x-4x-20=0
2x(x-5)-4(x-5)=0
(2x-4)(x-5)=0
X=2 and X=5
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