I might be wrong but I think the answer would be -x+2x+6 as a simplified version because if you use the equation (x+4•x+3)-3x(x+1)=a (or any letter you choose), you will get 3x+x^2+12+4x-3x-3x^2=y. Then, you can combine like terms:
4x-2x+12=a
The square root of 196 is 14
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Step-by-step explanation:
for this question is not even possible
I think the shape is an right angel. And for the answer to h is 90° and i think for b it is 45°. I hope this helps :)
