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No, (5h + 2h^2) is not equivalent to (7h). The expression (5h + 2h^2) contains a term (2h^2), which is a quadratic term, while (7h) is a linear term. Therefore, they represent different mathematical expressions.
It is: 11h
53 x h3
It is the same as 5h+20 = 5(h+4)
8w x 5h = 40wh