Howdy, iam Terry Wright, Hope you’re doing well!
What Are The Top 5 Formulas In Math? [Solved]
Wow, algebra can be confusing! But completing the square is actually pretty simple: if you have an equation like x2+bx+c, you just add b2 to both sides and subtract b24+c from both sides. That’ll give you (x+b2)2−b24+c. And the quadratic formula is a lifesaver when it comes to finding the roots of ax2+bx+c - just plug in your numbers for a, b, and c and you’ll get two answers: −b±√b2−4ac2a. Circles are easy too - circumference is 2πr and area is πr2. Spheres have volume of 4πr3/3 and surface area of 4πr2. Cylinders are a bit more complicated - volume is πr2h, lateral area is 2πrh, and total surface area is 2πrh + 2πr2. Phew!
