Question

solve the following quadratic equation by factorisation method : x²+x²-20=4​

Answer 1

Answer:

2x²-20-4=0

2x²-24=0

2x²=0+24

2x²=24

x²=24/2

x²=12

x=2/3

Answer 2

Answer:

x²+x²-20=4

2x²-20=4

2x²=4+20

2x²=24

x²=24/2

x²=12

x=√12