Please help 6n^2-5n^2-7n^2 simplify the expression
Since 6n^2 and −5n^2 are like terms then add −5n^2 to 6n^2to get n^2.n^2−7n^2Since n^2 and −7n^2 are like terms then add −7n^2 to n^2 to get −6n^2.The answer is −6n^2