Question

if a:b=2:3 then (a²-ab+2b²):(a²+ab-b²)=?​

Answer 1

Answer:

We have to slove two equations by substitution method.

Let eq a^2+b^2=25 be equation (1)

and let eq b^2-a^2=7 be equation (2)

Then add equation 1 and 2 , a^2 will cut and what remains is 2b^2=32 that is equal to b=4

Then put the value of b in any one of the equation and you will get a=3

Then a+b= 4+3=7 which is the answer

Answer 2

Answer:

Refer the attachment

Step-by-step explanation:

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