Which of the following is pure quadratic equation:
a)x2+2x+3 =0
b) x2-16=0
c) x2+3x=0
d) None of these
Which of the following is solution set of 5x2=30x
a) {6,2}
b) {0,6}
c) {0,0}
b) {8,4}
Solution:
5x(x-6)= 0 Either 5x=0 or x-6=0
X=0, 6 are the roots of given equation.
All those values of the variable for which given equation are true are called …………..
a) Solution or root
b) solution
c) extraneous root
d) pure solution
The set of all the solutions is called………….
a) empty set
b) proper set
c) Null set
d) Solution set
Which of the following is not the method of solving quadratic equations?
a) By factorization
b) By completing the square
c) by quadratic formula
d)By algebraic formula
The name quadratic comes from “quad” meaning square because the highest power of the variable power of variable is ……..
a) 0
b) 5
c) 2
d) 9
