Question

Find the value of a and b from the quadratic equation 2x square - 5x+7=0 ​

Answer 1

Answer:

Hello ....

Step-by-step explanation:

2x^2 + 5x + 7 = 0 (7*2=14 )

a=2 , b=5 , c=7 (from given equation)

Now take the factors in such a way that by multiplying the factors we should get 14 and by adding/subtracting we get 5

so the factors are 7 and 2

then,

2x^2 + 7x + 2x + 7 =0

x(2x+7) + 1(2x+7) = 0

(2x+7)(x+1) =0

2x-7=0 or x+1=0

2x=7 or x= -1

x=7/2 or x= -1

so the roots are x=7/2 and x= -1

Hope this helps you...

Please mark me as brainliest ...