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For each of the following quadratic equations
MATHEMATICS · Multi-part · CBSE · Mathematics · Polynomials · Polynomials
Problem
For each of the following quadratic equations, find the sum and product of the roots. Check your answer by solving the quadratic. (1)
x
2
+
4
x
−
21
=
0
x^2+4x-21=0
x
2
+
4
x
−
21
=
0
(2)
x
2
−
5
x
+
5
=
0
x^2-5x+5=0
x
2
−
5
x
+
5
=
0
(3)
4
x
2
−
12
x
+
5
=
0
4x^2-12x+5=0
4
x
2
−
12
x
+
5
=
0
(4)
3
x
2
−
4
x
−
2
=
0
3x^2-4x-2=0
3
x
2
−
4
x
−
2
=
0
Related theory
Solving Quadratic Equations
Quadratic Equations
Polynomials
Functions
Nature and relations of roots
Algebra
Relationship between zeroes and coefficients
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