Assessment: Algebraic Expression and Operations with Polynomials

Ana has x apples and Ben has y apples. Which expression shows the total number of apples?

• x-y

• x+y

• xy

• 2x+y

A shirt costs ₱250. If you buy n shirts, shirt expression represents the total costs?

• 250+n

• 250n

• n-250

A box van hold x mangoes. If there are 5 boxes, which expression shows the total number of mangoes?

• x+5

• 5x

• x-5

Liza has twice as many books as Carla. If Carla has c books, which expression shows the number of Liza's books?

• c+2

• 2c

• c-2

A taxi charges a fixed rate of ₱40 plus ₱12 per kilometer (k). Which expression represents the total fare?

• 40k+12

• 40+12k

• 52k

• 12+k

Simplify: 7x+5x.

• 12x

• 35x

• 7x²

• 2x

Simplify: (4a+3b)+(2a−5b).

• 6a-2b

• 2a-2b

• 6a+2b

• 2a+85

Subtract: (8x²+6x−3)−(5x²+2x−7).

• 3x²+4x+4

• 13x²+8x−10

• 3x²+4x−10

• 8x²+4x−3

Add: (2m²+4m+6)+(3m²−2m+1)+(m²+m−5).

• 5m²+3m+2

• 6m²+3m+2

• 7m²+3m+2

• 6m²+2m+5

Simplify: (5x−2y+7)−(3x+4y−5).

• 8x−6y+2

• 2x−6y+12

• 2x+2y+12

• 5x+y+2