Pls helppp :)) Solve for x by factoring

X^2+4x-21=0

There are multiple answers

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?