Question

Root 2 x2+7x+5 root 2 by factorisation method

Answer 1

Answer:

Explanation:

2x^2 + 7x + 5

product = 5 × 2= 10

sum = 7

no. = 5 and 2

2x^2 + 5x + 2x + 5=0

x ( 2x + 5 )+1 ( 2x + 5 )=0

( x + 1 ) ( 2x + 5 )=0

x + 1 =0 or 2x + 5=0

x = -1 or x = -5/2

Zeroes of the polynomial -1 and -5/2...

Now you can easily find out the roots of the polynomial by using alfa and bita formula...

Regards.