I think you’re right because I put the same thing on my quiz
You have to combine like terms, so the variable (x, y, s, d, c....) and the exponents must be the same in order to combine them.
For example:
x² + x³ Since they don't have the same exponent, you can't combine them
y² + 3y² = 4y²
23x + x = 24x
4. 2s² + 1 + s² - 2s + 1 You can rearrange it if it makes it easier
2s² + s² - 2s + 1 + 1 = 3s² - 2s + 2
5. 5t² - 2t - 1 - (3t² - 5t + 7) Distribute/multiply the - to (3t² - 5t + 7)
5t² - 2t - 1 - 3t² + 5t - 7 = 2t² + 3t - 8
Do the same for #9 and #10, and you should get:
9. 2k² + 5k - 9
10. 6y³ - 7y² - 6y - 12
Using the Pythagorean Theorem, you should get 45 [9 + 36]. Then, take the square root of 45 and simplify it to 3√5.
Lo siento, si me equivoco en español no es mi lengua materna
Answer: x es 6
Step-by-step explanation:
3x-6=12
Agrega 6 en ambos lados.
-6 se cancela y 12 + 6 es igual a 18.
Dividir por 3 en ambos lados
3x se cancela y 18 dividido entre 3 es igual a 6.
Answer:
a=54.15 and b=14
Step-by-step explanation:
