Question

find the roots of the following
i) 3 √7 y ^ 2 + 4 y - √7 = 0
ii) ( a - b ) x ^ 2 - ( a + b ) x + 2 b = 0​

Aur haa plz koi bhi galat matt batana.....​

Answer 1

Answer:

Step-by-step explanation:

i) 3√7y²+4y-√7=0

Using the quadratic formula

y = (-4±√16-4(3√7)(-√7))/6√7

y = (-4±√16+4*3*7)/6√7

y= (-4±√100)/6√7

y= -4±10/6√7

y= -2±5/3√7

ii) Using the same quadratic formula...

x = a+b ±√a²+b²+2ab -8b(a-b)/2a-2b