Find the roots of the quadratic equations by factorisation :3x^2-13x-30=0
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6
Answer:
3x²-13x-30=0
3x²-15x+2x-30=0
3x(x-15)+2(x-15)=0
(x-15)(3x+2)=0
x-15=0. 0r. 3x+2=0
x=15. 0r. 3x=-2
x=15. 0r. x=-2/3
Answered by
2
Answer:
3x² - 13x -30
3x² - 18x + 5x + 30
3x(x-6) + 5(x-6)
(3x + 5) (x-6)
x = -5/3 or x = 6
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