Question

Find the roots of the following quadratic equations by using quadratic formula
2x^2+5√3x+6=0
3x^2+2√5x-5=0
x^2+5x+5=0
6x^2+x-2=0
2x^2+20x+7=0​

Answer 1

Step-by-step explanation:





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Question



Find the roots of the quadratic equation 2x2+35x−2=0 by the factorisation method 

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Solution



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Given,

2x2+35x−2=0

⇒6x2+5x−6=0

6x2−4x+9x−6=0

2x(3x−2)+3(3x−2)=0

(3x−2)(2x+3)=0

(x−32)(x+23)=0

x=32,−23

Hence, this is the answer.