Math, asked by kumkumvishwani, 7 months ago

find the zeros of the quadratic polynomial 10x^2 -14x -12​

Answers

Answered by rukumanikumaran
11

hope this helps u

10x²-14x-12

10x² - 20x + 6x -12

(10x²-20x) ( 6x-12)

10x( x-2)  +6 (x-2)

(x-2), (10x+6)

(x-2)=0    (10x+6) =0

x = 2,  10x= -6

x= 2  , -6/10

x = 2 , -6/10 are zero of the polynomial 10x²-14x-12

Answered by sohanreddysathi
1

Answer:

The roots are 2,-3/5

Step-by-step explanation:

10x^2-14x-12

=5x^2-7x-6. (a=5,b=-7,c=-6)

discriminant=b^2-4ac

=(-7)^2-4*5*-6

=49+120

=169

therefore discriminant is greater than 0

so the roots are real roots

formula for finding roots=(-b+/-√b^2-4ac)/2a

=(7+/-√169)/10

=(7+/-13)/10

=7+13/10 ; 7-13/10

=20/10 ; -6/10

=2 ; -3/5

therefore the roots of the equation are 2,-3/5

HOPE IT HELPS

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