el costo de una camisa con 20% de descuento es de $400 ¿Cual es el precio de la camisa sin descuento?

What signals you that factoring by grouping is the best method to use when factoring a problem?

What expression is equivalent to 1/2(2+3x-6)

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103