Question

Select all of the following that are quadratic equations.

a. 7x2+ 14x= 0
b. x3- 3x2+ 1 = 0
c. 5x- 7 = 0
d. x2+ 3x-5 = 0
e. x- 5 = 9x+ 7
f. x2-x= 3x+ 7

is it b and d?

Answer 1

quadratic equations have degree two

Answer 2

A qudratic equation has 2 as the _highest_ power of x. \[\huge x^{\fbox{$2$}}\]

Answer 3

can u find degree of the given equations

Answer 4

is d