Question

Complete the statements to describe this expression. 5 � 3 + 2 ( � + 4 ) − 7 � 2 + 8 ( � − 9 ) 5x 3 +2(y+4)−7x 2 +8(y−9)

Answer 1

5x³ - 7x² + 10y - 64

Explanation:

5x³ + 2(y + 4) - 7x² + 8(y - 9)

= 5x³ + 2y + 8 - 7x² + 8y - 72

= 5x³ - 7x² + 10y - 64