Raul simplified the expression, as shown below. –[3h + 7h(2 – h)] = –[10h(2 – h)] = –[20h – h] = –19h describe the error(s) in raul’s work.

Raul should have first removed the innermost grouping symbols, the parentheses, by distributing 7h.

He should not have added like terms before multiplying.

Raul only multiplied the 10h times the 2 and forgot to multiply it through the quantity to the –h.

the answer is y = 11.54

hope this : )