First of all, the minus sign before the parenthesis changes the sign of all the terms inside:

Now, we can sum like terms:

So, the final expression is

Answer:
yes the triangles are similar. 30 divided by 3 equals 10, and 3 divided by 3 equals 1, so the triangles are equal
Answer:
x= 5
?=10
Step-by-step explanation:
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Answer:
thanks for the points!........... :D
Answer:

Step-by-step explanation:
Start by factoring out a -1...

Now, we have to find two integers that multiply to get -16 and have a sum of 6:
(-2)*8=-16
-2+8=8-2=6
Using this, we can split 6x into -2x and 8x...

Factor the first and second half separately...
![f(x)=-[(x^2-2x)+(8x-16)]\\f(x)=-[x(x-2)+8(x-2)]\\](https://tex.z-dn.net/?f=f%28x%29%3D-%5B%28x%5E2-2x%29%2B%288x-16%29%5D%5C%5Cf%28x%29%3D-%5Bx%28x-2%29%2B8%28x-2%29%5D%5C%5C)
Since both x and 8 are being multiplied by x-2, we can combine them to get...
