Combine like terms: 7x-8y+5x^2+2x-10y

the answer is 5x^2+9x-18y

Step-by-step explanation:

since 5x^2 does not have like terms, it is left alone. next, combine all of the x variables which are 7x and 2x to get 9x. that leaves you with the y values which are -8y and -10y to get -18y. when combining terms, always look for similar variables. remember, just because some value has the same variable doesn't mean it is necessarily the same. for example, you cannot combine x^2 and x because one has a power and the other does not. i hoped this helped.

step-by-step explanation:

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540