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ddd [48]
3 years ago
11

Add the polynomials. (2x + 5y) + (3x - 2y)

Mathematics
2 answers:
Oxana [17]3 years ago
6 0

Answer:

5x+3y

Step-by-step explanation:

(2x + 5y) + (3x - 2y) simpified is 5x+3y

LiRa [457]3 years ago
3 0

(2x + 5y) + (3x - 2y)

2x+5y+3x−2y

(2x+3x)+(5y−2y)

5x+3y

1. Remove parentheses 2. Collect like terms 3. Simplify

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great rest of Black History Month! :-)  

- Cutiepatutie ☺❀❤

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Answer:

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Step-by-step explanation:

<u>Method 1</u>

Apply Difference of Two Squares Formula: a^2-b^2=(a+b)(a-b)

Given  x^2-16=0

Rewrite 16 as 4²

Therefore, a^2=x^2 and b^2=4^2

\implies a = \sqrt{x^2}=x

\implies b=\sqrt{4^2} =4

\implies x^2-16^2=(x+4)(x-4)

\implies (x+4)(x-4)=0

\implies (x+4)=0 \implies x=-4

\implies (x-4)=0 \implies x=4

<u>Method 2</u>

Given equation:

x^2-16=0

Add 16 to both sides:

\implies x^2-16+16=0 + 16

\implies x^2=16

Square root both sides:

\implies \sqrt{x^2}=\sqrt{16}

\implies x=\pm4

Therefore, x = -4, x = 4

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