Can you me this is so hard plz1 2/5*=7

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

Use the distance formula to find the distance between (-3,5) and (3,1)