2x2 + 5x + 2 = 0 solve by quadratic equation by factorisation
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Answer:
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2x2 5x 2 0 गुणनखंड विधि द्वारा द्विघात समीकरण द्वारा हल
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How to solve your problem
2
2
+
5
+
2
=
0
2x^{2}+5x+2=0
2x2+5x+2=0
Quadratic formula
Factor
1
Use the quadratic formula
=
−
±
2
−
4
√
2
x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}
x=2a−b±b2−4ac
Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula.
2
2
+
5
+
2
=
0
2x^{2}+5x+2=0
2x2+5x+2=0
=
2
a={\color{#c92786}{2}}
a=2
=
5
b={\color{#e8710a}{5}}
b=5
=
2
c={\color{#129eaf}{2}}
c=2
=
−
5
±
5
2
−
4
⋅
2
⋅
2
√
2
⋅
2
x=\frac{-{\color{#e8710a}{5}} \pm \sqrt{{\color{#e8710a}{5}}^{2}-4 \cdot {\color{#c92786}{2}} \cdot {\color{#129eaf}{2}}}}{2 \cdot {\color{#c92786}{2}}}
x=2⋅2−5±52−4⋅2⋅2