Question

solve quadratic equations using formula x²-2x-3=0​

Answer 1

Answer:

This is your answer hope it's help u

Answer 2

Answer:

x² - 2x - 3 = 0

write it in the form of ax² + bx + c = 0

a = 1, b = -2 , c = - 3

According to the formula :-

x = (-b ± √b² - 4ac)/2a

=> { 2 ± √ (-2)² - 4×1 × (-3) } /2

=> { 2 ± √ 4 +12} /2

=> { 2 ± √16 } /2

=> { 2 ± 4 }/2

So, the roots are :-

2+4/2

=> 6/2

=> 3

and

2 - 4 /2

=> -2 /2

=> -1

Roots : 3 and -1

Hence, Solved.