1.1 Exercise 76

Translate the phrases into algebraic expressions.

ⓐ the difference of $5 x^{2}$ and $6 x y$
ⓑ the quotient of $6 y^{2}$ and $5 x$
ⓒ Twenty-one more than $y^{2}$
ⓓ $6 x$ less than $81 x^{2}$