Can someone help me?

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)