This is the basic and important question from quadratic equation chapter in which we have given an equation 3x²-343=0 and we have to solve the above equation
Kindly give me a detailed solution of this question
RS Aggarwal, Class 10, chapter 4A, question no 7
3x²−243=0
or x²−81=0
(x)²−(9)²=0
(x+9)(x−9)=0
Either, x+9=0 or x−9=0
x=−9 or 9