Class 10 cbse , Mathematics From ch Quadratic equations
Answers
Step-by-step explanation:
Topic:-
Quadratic equations
1) standard form of Quadratic equation=ax²+bx+c=0
2)An equation that can be expressed in the form ax 2 +c=0, where a and c are real numbers and a=0 is a pure quadratic equation.
Or
the quadratic equation having only second degree variable is called a pure quadratic equation
examples:
1) x²−9=0
2)x²+8=0
5x²-12 = 0, 4x² -11 = 0
which do not contain term in x are called pure quadratic equations
3)An adfected quadratic equation is a type of quadratic equation in which x term must be present.
An adfected quadratic equation is a type of quadratic equation in which x term must be present.example :2x²-3x+5= 0, 5x²2 + 9x = 0
4)1) Graph methods
2) Algebraic methods
a) Factorization
b) completing the square method
c) quadratic formula
d)cross Multiplication method