What is the standard form of $y(8y + 5)^2$ ?

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Answer 1 · 2015-12-21T23:27:14

$16y^3+80y^2+25y$

Completely distribute the expression.

First, square $(8y+5)$ .

$y(8y+5)(8y+5)$

$y(16y^2+40y+40y+25)$

$y(16y^2+80y+25)$

$16y^3+80y^2+25y$

This is in standard form—the degrees (exponents) are in descending order.

What is the standard form of y(8y + 5)^2 y(8y + 5)^2 ?