CBSE BOARD X, asked by omkarvaibhavpawar1, 2 months ago

if A and B are the roots of quadratic equation 2 X2 + 4 x + 3 = 0 then the value of a + b is equals to

Answers

Answered by manmeetmaan20
1

Given :

  • x² + 4x + 3 = 0

To Find :

  • Find the value of a and b if a and b are the roots of the equation

Solution :

{ \small{\begin{array}{l} We \ know \ that , In \ the \ Quadratic \ Equation \\ sum \ of \ zeros \ is \ equal \ to \\   \\  </u><u>\</u><u>\</u><u> </u><u>a</u><u> </u><u>+</u><u> </u><u>b=</u><u> </u><u>-</u><u> </u><u>\dfrac{</u><u>coefficient</u><u> </u><u>\</u><u> </u><u>of</u><u> </u><u>\</u><u> </u><u>x</u><u>}{</u><u>coefficient</u><u> </u><u>\</u><u> </u><u>of</u><u> </u><u>\</u><u> </u><u>x^</u><u>2</u><u>}</u><u> </u><u>\\  \\  \\  \implies a  + b \:  =  -  \dfrac{4}{1}\\ \\ \\  \implies \: a  + b =  - 4 \end{array}}}

{\small{\frak{\red{\therefore Sum \ of \ zeros = -4}}}}

Answered by nikhil9843
0

Answer:

Explanation: good question

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