The sum of the polynomials (8x²-9y²-4x)+(x²-3y²<span>-7x) is:
1. You must add the terms whose variables and exponents are the same.
2. Let's rewrite the polynomials:
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(8x²-9y²-4x)+(x²-3y²-7x)
8x²-9y²-4x+x²-3y²-7x
(8+1)x²+(-4-7)x+(-9-3)y²
3. Therefore, the result is:
9x²-11x-12y²
3. <span>What is the sum of the polynomials?
The answer is: </span>9x²-11x-12y²
Pythagorean Theorem:
a^2 + b^2 = c^2
26^2 + 18^2 = c^2
676 + 324 = c^2
1,000 = c^2
ratio
31.6 = c
Answer:
6x
Step-by-step explanation:
2x-5x=-3x+9x=6x
espero que esto ayude por favor marque el más inteligente
Answer:
- 7
Step-by-step explanation:
21 = - 4x - 7
- 4x - 7 = 21
- 4x = 21 + 7
- 4x = 28
x = 28 / - 4
x = - 7
