Question

nancy dii as Hindi ma aacha as samdo Jada sign change hita hai is equation ma easy method sa batana​

Answer 1

Answer:

in pic full solution

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Answer 2

If you move (+) from One side to another side then it will convert into (-) and vice versa

OR

If you move (×) from One side to another side then it will convert into (÷) and vice versa

LHS = RHS

-x^2+60x+2700 = 0

If you move 2700 to RHS then its sign change from (+) to (-)

then the resulting equation will be

-x^2 +60x = -2700

Now if you move 60x to RHS then its sign change from (+) to (-)

then the resulting equation will be

-x^2 = -60x - 2700

After this if you move -x^2 to RHS then its sign changes from (-) to (+)

At last the resulting equation will be

x^2 -60x-2700 =0

I hope now you would easily understand why sign changes