Question

guise please dont post irrelevant answer just tell me how this plus minus sign will changes¿¿¿¿¿ if it answers are irrelevant then it answer will be reported​

Answer 1

Answer:

Step-by-step explanation:

they have take - as common

-( x^2 + 60x + 2700) = 0

-x^2 - 60 x - 2700

Answer 2

Answer:

For solving this equation you will first have to take the numbers without a variable to the RHS(right hand side) and you will also change the sign. + will become - and - will become +. For example in the first equation,

-x^2+60x+2700=0

-x^2+60x=0 -2700 (here when we changed the side of 2700, we also changed its sign. It was initially + which became -)

-x^2+60x=-2700

-x^2=-2700 -60x (similarly we changed the sign of 60x also and like this we will solve the equation further)

-x^2=-(2700+60x) (here we took the - sign in common because of which 2700 and 60x became positive(+) as -+=-)

Now as both the sides have a minus sign in common then we can cancell out both the minus signs to make it positive(+)

x^2=2700+60x

I hope you can solve the equation further on your own. Please follow me and mark me as the brainliest if your doubt was cleared.