Mathematics, 20.09.2020 20:01 matilda67

YALL...I NEED THIS ANSWERED NOW PLEASE HELP ITS SUPER LATE AND I NEED MY GRADES TO GRADUATE...PLZ HELP ITS ONLY 5 QUESTIONS PLZ I ANSWERED THEM, BUT THEY MIGHT BE WRONG IDK JUST HELP

YALL...I NEED THIS ANSWERED NOW PLEASE HELP ITS SUPER LATE AND I NEED MY GRADES TO GRADUATE...PLZ H

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Answer from: thickbeanpapi

I can see many questions here, and all are realtors to Algebraic Identities. So first of all, let's list out the identities which we will help us further in solving the questions.

Identity I: (a + b)² = a² + 2ab + b²Identity II: (a – b)² = a² – 2ab + b²Identity III: a² – b²= (a + b)(a – b)Identity IV: (x + a)(x + b) = x² + (a + b) x + abIdentity V: (a + b + c)²= a² + b² + c² + 2ab + 2bc + 2caIdentity VI: (a + b)³ = a³ + b³ + 3ab (a + b)Identity VII: (a – b)³ = a³ – b³ – 3ab (a – b)Identity VIII: a³ + b³ + c³ – 3abc = (a + b + c)(a² + b² + c² – ab – bc – ca)

1) Identity is a true equation relating one mathematical expression to another.

In the above identity list, we can see algebraic equations are given in both sides of the equality '=' sign. Option A

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2) By using the algebraic identities in the above,

x² + y² = x² + 2xy + y² (Incorrect)(x + y)² = x² + 2xy + y² ✓x³ + y³ = (x + y)(x² - xy + y²) ✓x² - y² = (x + y)(x - y)

So, the answer is Option A

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3) Yes this is identity because

⇛ x⁶ + y⁶

⇛ (x²)³ + (y²)³

Let consider a = x² and b = y²

So, by using the identity:

a³ + b³ = (a + b)(a² - ab + b²)

⇛ (x² + y²)(x⁴ - x²y² + b⁴)

So, the correct option is Option A

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4) This is the part of the identity to be written in the right hand side, the left hand side is:

x³ + y³

✏️ Refer to the above question for the same.

So, the correct option is Option C

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5) If we will see Identity III from the list:

(x² - y²) = (x + y)(x - y)

And this is not the same to what is given in the Q.

So, This is not an identity because the equation is not true.

Correct option is Option C

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Answer from: Quest

is there answer choices?

Answer from: Quest

i dont know if you cant find a way its best to actually add all of them start from 105 tho

step-by-step explanation:

I’m not sure how to solve these type of problems

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