Question

(i).
Q1. Find the roots of the following quadratic equations using quadratic formula.
x2+2x-143=0​

Answer 1

Answer:

x2+2x-143

=>x(x+13)-11(x+13)=0

=>(x-11)(x+13)=0

=> x-11=0 or x+13=0

=>x=11 or x=-13

Therefore, the roots of the quadratic equation are x=11,-13