If m(x) = x2 + 3 and n(x) = 5x + 9, which expression is equivalent to (mn)(x)? 5x3 + 9x2 + 15x + 27 25x2 + 90x + 84 x2 + 5x + 12 5x2 + 24

If m(x) = x2 + 3 and n(x) = 5x + 9, which expression is equivalent to

1.	If m(x) = x2 + 3 and n(x) = 5x + 9, which expression is equivalent to (mn)(x)? 5x3 + 9x2 + 15x + 27 25x2 + 90x + 84 x2 + 5x + 12 5x2 + 24
Answer» If m(x) = x² + 3 and n(x) = 5x + 9, which expression is equivalent to (mn)(x)? 5x³ + 9x² + 15x + 27 25x² + 90x + 84 x² + 5x + 12 5x² + 24 Solution: