Evaluating Algebraic Expression

Simplify:

x - 2 y + 3( x + y) -3 x +7 y

• 4 x + 9 y

• • - 6 y + 12

• x + 8 y

• x - 8 y

Simplify (15+3 y) 2 - 14y

• -8 y + 30

• 8 y + 30

• 8 y - 30

• 20 y + 30

What is the constant in this algebraic expression, 3 a +2 b -12

• a, b

• 2, 3

• 12

• -12

What is the numerical coefficient in this algebraic expression, 3 a +2 b -12

• a, b

• 2, 3

• 12

• -12

What is the variable in this algebraic expression, 3 a +2 b -12

• a, b

• 2, 3

• 12

• -12

Simplify:

5( x² - 7 ) - 3 ( x² + 10 )

• 8 x² + 65

• 2 x² - 65

• 2 x² + 65

• 8 x² - 65

Evaluate 2ab + 5ab -19a when a = 7 and b = 4

• 63

• 84

• -1 680

• 320

Evaluate 20abc when a = 7, b = 4 and

c = -3

• 63

• 84

• -1 680

• 320

Evaluate 2ab + 8ab -5ab - 6ab +4ab

when a = 7, b = 4 and

c = -3

• 63

• 84

• -1 680

• 320

How many terms does this algebraic expression: 2x +3y - 2z

• 1

• 2

• 3

• 4