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Alika [10]
2 years ago
15

Kiran and Mai are trying to figure out if this equation is an identity, what do you think

Mathematics
1 answer:
ValentinkaMS [17]2 years ago
7 0

Expanding the left side of the equation, it is found that since <u>both sides are equal</u>, yes, it is an identity.

An equality represents an identity if <u>both sides are equal</u>.

In this problem:

(a - b)^4 = a^4 - 4a^3b + 6a^2b^2 - 4ab^3 + b^4

Expanding the left side:

(a - b)^2(a - b)^2 = a^4 - 4a^3b + 6a^2b^2 + 4ab^3 + b^4

(a^2 - 2ab + b^2)(a^2 - 2ab + b^2) = a^4 - 4a^3b + 6a^2b^2 - 4ab^3 + b^4

a^4 - 4a^3b + + 6a^2b^2 - 4ab^3 + b^4 = a^4 - 4a^3b + 6a^2b^2 - 4ab^3 + b^4

Since <u>both sides are equal</u>, yes, it is an identity.

A similar problem is given at brainly.com/question/24866308

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3 years ago
I still need help with similar question
KatRina [158]

Step-by-step explanation:

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The axis of symmetry is middle of the parabola.  In this equation we see that at x = -1 we have the vertex and also the middle of the parabola.  So our axis of symmetry is x = -1.

<u>Step 2:  Determine the vertex</u>

The vertex is the minimum or maximum of a parabola and is bent in a crest form.  In this example the vertex is at (-1, -3) because we are using the tip of the graph.

<u>Step 3:  Determine the y-intercept</u>

The y-intercept is where the graph intersects with the y-axis.  In this example we intersect the y-axis at -4 so that means that our point would be (0, -4) meaning that we intersect x = 0 at -4.

<u>Step 4:  Determine if the vertex is a min or max</u>

Looking at the graph we can see that the rest of the red line is beneath the vertex point which means that the vertex is a max.

<u>Step 5:  Determine the domain</u>

The domain is the x-values that we are going to be using and we know that we are reaching toward positive and negative inifity which means that we are using all real numbers.

<u>Step 6:  Determine the range</u>

The range is the y axis and what y values we are able to reach using the graph.  In this example we can see that all y-values above -3 are not being used therefore the range is y \leq -3

3 0
2 years ago
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Step-by-step explanation:

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3 years ago
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