Vocab
What is the variable in the given expression:
4x2 + 9
x
Write an expression using the distributive property, that is equivalent to: 2(7x+4y) + 3x
17x + 8y
Write an expression that is equivalent to the phrase shown below. The quotient of the sum of 2t and 2, and s to the power of 2.
2t +2/s2
Student claims 23 = 6
2 x 2 x 2 = 8
It is not 2 x 3!!!!!!
What is the value of the expression shown below when c = 7 and h = 5 :
c2 + 4h - 7
62
What is the constant in the given expression:
5x2 - 4
10 less than the product of 15 and c
15c - 10
Write an expression using the distributive property, that is equivalent to:
9(9m + 3t).
81m + 27t
Student claims that the expression 4x - 6 when x=2 is equivalent to 36. What did this student do wrong? Correct answer?
The answer is 2. 4x means 4 times x! So 4(2) - 6 = 2
What is the value of the expression 8b + c3 when b = 9 and c = 2?
80
How many terms are in the given expression:
3x2 + 5y - 5 + 14
4 terms
Write a word sentence for the following expression: 2(x+8)
2 multiplied by the sum of x and 8
Wrote an expression represents the phrase below. 3 fewer than a number, p
p-3
A student claims that 32x + 10y = 42xy
Why is this student incorrect
We can't add variables that are not the same!!
What is the value of the expression 5(b + 8) - c2 when b = 4 and c = 5?
35
What is the coefficient in the given expression:
6x2 + 7 - 2
6
The sum of 25 and h is divided by f cubed.
(25 + h)/f3
x raised to the fifth power and then increased by the product of 5 and m
x5 + 5m
A student claims 32 + 17 = 23
What's the correct answer?
What's the mistake?
26
32 = 9
What is the value of the expression 2c2 when c = 5?
50
Define the coefficient, variable, constants, and amount of terms in this given expression:
7x2 + 4 - 6
Coefficient: 7
Variable: x
Constants: 4 and 6
Terms: 3
Write an expression using the distributive property, that is equivalent to:
6(2x+6y) -6x+8y
6x + 44y
Write an expression using the distributive property that is equivalent to:
3(8x+6y) - 3y
24x - 15y
Simplify the following expression:
8(2x + 4y) - 7x
Student answer: 16x + 25y
What did this student do wrong?
Correct answer: 9x + 32y
What is the value of the expression 4x - 7y + 13 + c2 when x = 11, y = 3, and c = 5?
61