First Course in Algebra

1st number 2d number 3x²y 9 a² 9 x² A's age A's distance a²b a²b² a²c a²x a²x² a³x ab² abc2 ac² Algebra ax² ax³ B's age B's rate base in feet equal the number equation graph greater number hypotenuse inches lars less number Let Then Whence Let Therefore Whence Let x equal miles per hour number of days number of dollars number of feet number of hours odd number perimeter R₁ represent the number required number second number Solving square roots statement becomes Whence Substituting unknown number w₁ Whence 22 Whence h Whence x x+2y x²y x²y² x²y³ x³y xy² xy³ ах ха