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Find the sum and the product of the roots of the equation.

4x^2+15x+9=0

2 Answers

5 votes

Answer:

The sum of its root is -15/4 and the product of its root is 9/4

STEP BY STEP Step-by-step explanation :

To find the sum of the root -b/a gonna help us

so let's substitute the numbers.

4x^2+15x+9, from the equation

a=4

b=15

c=9

then -b/a => -15/4.

to find the product of the root we use c/a then,

c/a => 9/4.

I hope it help you a lot thank you guys

User Dimpl
by
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3 votes

Answer:

comparing given quadratic eqn 4x²+15x+9=0 with ax²+bx+C=0,we get

a=4,b=15 and c=9

Now,sum of roots=-b/a=-15/4

and, product of roots=c/a=9/4

User Sergey Anisimov
by
7.8k points