1.

If A and B are the zeros of x square + 9 X + 7 then the value of a + b is​

Answer»

\tt \huge \underline{answer}

  • A and B are the zeroes of quadratic equation

  • Given equation: x²+9x+7

Solution:-

we know that

General Formula of quadratic EQUATIONS....

\sf \huge\boxed{ {ax}^{2} + bx + c = 0}

Let us compare the given equation with STANDARD form of quadratic equations.

  • a=1

  • b=9

  • c=7

A+B=-b/a=-9/1=-9

therefore,

\tt \bigstar \boxed { \: \: a + b = - 9 \: \: }


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