Answer:
12/20/28/37/42
Step-by-step explanation:
you said that was the right answer
2 x 5 x r will give you this as well as 10r
Answer:
x⁴ - 8x² + 9
Step-by-step explanation:
The Area of the smallest square is A1 = x . x = x²
The Area of the second square is A2 = ( x² - 3 )(x² - 3)
A2 = x⁴ - 3x² - 3x² + 9
A2 = x⁴ - 6x² + 9
The Area of the Shaded shape is A2 - A1
x⁴ - 6x² + 9 - x²
x⁴ - 8x² + 9
Hello there!
Let's use foil.
First: 4x * 2x = 8x^2
Outside: 4x * -9 = -36x
Inside: -7 * 2x = -14x
Last: -7 * -9 = 63
Now, let's combine these.
8x^2 - 36x - 14x + 63
Finally, we can simplify this
8x - 50x + 63
I hope I helped!
Let me know if you need anything else!
~ Zoe
Step-by-step explanation:
The correct steps are:
2x²-2x-24=0
2(x²-x-12)=0
2(x-4)(x+3)=0
x=4 or x=-3
so what actually went wrong, is the final answer which is supposed to be <em>x=4,-3</em><em> </em>instead of x=-4,3
