Make c the subject:
x=-b+(b²-4ac) divided by 2a
the brackets mean square root

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42