ALGEBRA CLASS 7

Product of numbers y and z subtracted from 10.

• 10-yz

• yz-10

• y-10

• 10-y-z

Classify the following polynomial:

1.2 ab – 2.4 b + 3.6a

• Monomial

• Binomial

• Trinomial

• None of the above

The coefficient of x in

-12xy² + 25 is ________

• y²

• 12

• -12y²

• 12y²

Identify like terms in the following:

– xy² , – 4yx² , 8x² , 2xy² , 7y, – 11x²

• – xy², 2xy² only

• – xy² , 2xy² ; -11x² , 8x²

• -11x² , 8x² only

• – xy² , – 4yx² , 8x² , 2xy²

The factors of (-x²y) are ______

• -1

• x,x,y

• x²y

• -1,x,x,y

Add the following expressions:

(14x + 10y – 12xy – 13), (18 – 7x – 10y + 8xy) and (4xy)

• 14x + 5

• 7x - 5

• 7x + 5

• 7x

Subtract:

4pq – 5q² – 3p² from 5p² + 3q² – pq

• 8p² + 8q²

• 8p² + 8q² – 5pq

• 8p² – 5pq

• 8q² – 5pq

From the sum of (3x – y + 11) and (-y – 11), subtract (3x – y – 11).

• -y + 12

• -y + 11

• y - 11

• -y

If p = -2, find the value of:

-2p³ – 3p² + 4p + 7

• 3

• 4

• -3

• 20

When a = 2, b = -1, find the value of the given expression:

2a²b + 2ab² + ab

• -6

• 6

• -10

• -16