Question

2xsquare+3x-26=0 by spliiting the midlle term ang compliting the squares both side

Answer 1

2x^2+3x-26=0

=>x^2+3/2x-13=0

=>x^2+2.3/4x +(3/4)^2=13+(3/4)^2

=>(x+3/2)^2=13+9/16=217/16

take square both side
x+3/2=+_√(217/16)
x=-3/2+_√(217/16)