Question

W

Answer 1

the equation whose highest degree is 2

Answer 2

if u multiply the right hand side of the equation u get
15x^2+4x-14
so the 15x^2 will be cancelled by the one on the LHS and u will be left with a linear equation
so it is not quadratic

Answer 3

the way i see it none of the equations are quadratic
the first one is linear and so is the third.
and if u check the last one it is cubic(its highest degree is 3)

Answer 4

does that help?

Answer 5

ok.i now see that i made a mistake

Answer 6

check the third equation,multiply it out and u will see that it is the quadratic one

Answer 7

@beketso, you should try to guide the student to the correct answer.

Answer 8

@Hero point noted

Answer 9

yw