What is the value of the dicsriminant of x^2-7x+4?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.