The expression (-4x + 9)^2 cannot be equal to (-4x)^2 + 9^2 because it is actually equal to the product of two factors (3 + 2sqrt x) (3- 2 sqrt x). One cannot use obviously distributive property. Hence the answer to this problem should be C. as she did not understand both perfect square trinomial and did not determine the product
Answer:
Step-by-step explanation:
To solve this exercise you need to remember the following properties:
1. The Distributive property states that:
2. The Addition property of Equality statest that:
If , then
3. The Subtraction property of Equality statest that:
If , then
4. The Division property of Equality statest that:
If , then
5. The Multiplication property of Equality statest that:
If , then
Given the equation:
You must solve for "g" in order to find its value:
- Apply the Distributive property:
- Apply the Addition property of Equality adding 30 to both sides of the equation:
- Apply the Division property of Equality dividing both sides by 2:
Factor out the largest perfect square of 32.
( in this example we factored out 16 )
Rewrite
____
/16⋅2
as the product of two radicals.
The square root of 16 is 4.
Divide numerator and denominator by 4.
Answer:
Step-by-step explanation:
the slope is positive and the y-intercepts is (0,0)
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Answer:
K is -1 12/55
Step-by-step explanation:
You take 3 2/11 minus 4 2/5 to get -1 12/55. If you want to make sure, you add 4 2/5 and -1 12/55. The answer will be 3 2/11