x^2- 60x - 2700=0 find the root of the quadratic equation by factorisation
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Answered by
20
Heya,
x^2-60x-2700=0
=>x^2-90x+30x-2700=0
=>x(x-90)+30(x-90)=0
=>(x-90)(x-30)=0
=>x-90=0 or, x-30=0
=>x=90 or 30
Hence, the roots of the equation are 90 and 30
x^2-60x-2700=0
=>x^2-90x+30x-2700=0
=>x(x-90)+30(x-90)=0
=>(x-90)(x-30)=0
=>x-90=0 or, x-30=0
=>x=90 or 30
Hence, the roots of the equation are 90 and 30
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Answered by
35
here is your answer.
x^2-60x - 2700=0
x^2 -90x +30x - 2700= 0
x( x-90) +30(x- 90)=0
(x-90) (x+30)=0
x-90=0 or, x+30=0
x=90. x= -30
x^2-60x - 2700=0
x^2 -90x +30x - 2700= 0
x( x-90) +30(x- 90)=0
(x-90) (x+30)=0
x-90=0 or, x+30=0
x=90. x= -30
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