Who else carved Jack off LANTERNS for this Halloween,,,

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

Urgent? will give brainliest to the first correct answer what is the area of the figure?

Identify reflection rule on a coordinate plane that verifies that triangle a(-1,7), b(6,5), c(-2,2) and a’(-1,-7), b(6,-5), c’(-2,2) triangle are congruent when reflected over the x-axis