Question

The sum of zeroes of quadratic polynomial 2xsquare -8x + 6

Answer 1

Answer:

Step-by-step explanation:

Here, a=2, b=-8, c=6

Now,

Sum of zeroes(alpha+beta)= -b/a

=-(-8)/2

=8/2

=4

Answer 2

2x2- 8x + 6

2x2 -2x-6x+6

2x(x-1)-6(x-1)

(x-1)(2x-6)

(x-1)=0 / (2x-6)=0

x=1 x=6/2 or 3

Prove

alpha + beta = -b/a

1+3= -(-8/2)

4=4

alpha × beta= c/a

1×3= 6/2

3=3

Hence, proved.
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