Help please find LCM factorization method of down questions marked in red square.

i need it with salution.

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction

20 points plus brainliest andwer plus my hover hoard im v desperate ! evaluate the polynomial for x=-2 in the equation -3x^3+7x^2-7x-1 (simplify your answer)