Question

1. Evaluate 3x – 2 , if x = 2.
A. 1 B. 2 C. 3 D. 4

2. Evaluate 2xy – x + y , if x = -1 and y = 1
A. -1 B. 0 C. 1 D. 2

3. What must be the value of x, if the expression 4x – 4 = 12
A. 4 B. 3 C. 2 D. 1

4. Evaluate 2x2y – x - y2 , if x = -2 and y = 1
A. 9 B. 6 C. -6 D. -9

5).Evaluate 2x²y-x-y²-2
A. -1 B. 0 C. 1 D. 2

6. What is the sum of (15s + 6t) and (-8s – 4t)?

A. 7s – 2t
B. 7s + 2t
C. -7s + 2t
D. -7s – 2t​

Answer 1

Answer:

1.(D)

2. (B)

3.(c)

4.(A)

6.(B)

Answer 2

Answer:

1).3x-2 =) 3(2) -2 = 6 -2 = 4

2). 2xy-x+y =) 2(-1)(1) - (-1)+1 =) -2 +1 +1 =) -2 +2 = 0 I hope it helps