Question

Solve the quadratic equation.

Answer 1

Answer:

product =1 and sum =2

then look for two no whose product and sum give the digits above.

it's (1 and 1)

then x2+x+x+1=0

factorising it gives

x(x+1)+1(x+1)=0

(x+1)(x+1)=0

then x=-1

Answer 2

This is the answer using the formula