Chapter 6: Problem 56
Simplify each algebraic expression. \(4(5 y-3)-(6 y+3)\)
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Chapter 6: Problem 56
Simplify each algebraic expression. \(4(5 y-3)-(6 y+3)\)
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Solve the equations using the quadratic formula. \(4 x^{2}=12 x-9\)
The formula$$N=\frac{t^{2}-t}{2}$$describes the number of football games, \(N\), that must be played in a league with \(t\) teams if each team is to play every other team once. Use this information to solve. If a league has 45 games scheduled, how many teams belong to the league, assuming that each team plays every other team once?
In Exercises 98-99, find all positive integers b so that the trinomial can be factored. \(x^{2}+b x+15\)
Solve the quadratic equations by factoring. \(x^{2}-4 x=21\)
Use FOIL to find the products in Exercises 1-8. \((x+3)(x+5)\)
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