HELP! I'm stuck.

Solution:

$\text {Let the number be (n) then } \cdots\\ \small \text { }\\ \underbrace {\small \text {Twice the square of a number}} _ {\large \bf 2n^2 }\ \underbrace {\small \text {increased by}} _ {\large \bf +}\ \underbrace {\small \text {five times the product of the number and three more than the number}} _ {\large \bf 5(n)(n+3)}\\ \\ \underbrace {\small \text {is}} _ {\large \bf =} \underbrace {\small \text {the opposite of}} _ {\large \bf -} \underbrace {\small \text { the quotient of six and the number}} _ {\large \bf 6/n}\\ \text{ }\\ \text{ }\\ \hspace {7cm} \bf 2n^2+5(n)(n+3) = -6/n \\ $

GA