5x^2 + 3x + 9 - (2x^2 + 4x + x^2 + 3) =
5x^2 + 3x + 9 - (3x^2 + 4x + 3) =
5x^2 + 3x + 9 - 3x^2 - 4x - 3 =
2x^2 - x + 6 <===
<h3>
Answer: 54x^2+360x+600</h3>
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Explanation:
One square face has an area of
(length)*(width) = (3x+10)(3x+10) = 9x^2+30x+30x+100 = 9x^2+60x+100
after using the FOIL rule
Multiply that by 6 to get the total area of all 6 faces
6*(9x^2+60x+100) = 54x^2+360x+600
The surface area units are in square feet.
4/10, 6/15, 8/20, 10/50, and 12/60.
Answer:
Equation I believe is the answer
let me know if not
Answer:
Latisha correctly verified that x² + x - 12 = (x - 3)(x + 4)
Step-by-step explanation:
In the problem, each student was to give their explanation of why the statement above is correct. In order to know if this statement is correct, you can also simply multiply the terms after the equal sign.
(x - 3)(x + 4)
Use foil method to multiply.
x² - 3x + 4x - 12
Combine like terms.
x² + x - 12
You can also find out if the statement is correct is multiplying and adding the numbers together.
-3 * 4 = -12
-3 + 4 = 1
So, Latisha is correct because her explanation verified the statement above.
