Combining Like Terms (Challenge)

−x²+2−1+6x²−4x²

• x ²  -1

• x² +1

• 3x² +1

• x ²+3

Simplify the expression: 3(1 - 2x) + 7

• 21 - 6x

• 24 + 6x

• 10 + 6x

• 10 - 6x

8x² + 9x - 10 + 2x² + 4x + 15

• 10X² + 13x - 25

• 10x² + 13x + 25

• 10x² + 13x + 5

Which terms below are NOT like terms.

• x and 2x

• 5 and 19

• 3y³ and 6y³

• 5n and 5y

Simplify:
-1x + y - z + 10z + 2x - 10y

• 1x - 9y - 9z

• 1x - 9z - 9y

• -1x - 9z - 9y

• -1x - 9 - 9y

CHALLENGE QUESTION!
Simplify the following expression:
(5x⁴ - 3x + 8x²) - (8x⁴ - 7x²)

• 13x⁴ - 3x + 1x²

• -3x⁴ + 15x² - 3x

• -3x⁴ - 1x² + 3x

• 13x⁴ + 15x² - 3x

Which of these are like terms in the following expression:
3x + 7 - 9x + 24y + 2x²

• 7, 24y

• 3x, 9x

• 3x, -9x

• 3x, -9x, 2x²

x²+12-9x-6x²+11x-4

• -5x²+2x+8

• -6x²+2x+8

• 7x²+20x+16

• -3x²+8

10x-9+x²-8x²+2x-4

• 11x²-6x+5

• 7x²+12x+13

• -7x²+12x-13

• 5x²-13

7x²-9x+x-12+5x²+3

• 12x²+10x-15

• 4x²-9

• 12x²-8x+9

• 12x²-8x-9