In algebra, letters are used when numbers are not known. Algebraic terms, such as \(2s\) or \(8y\), leave the multiplication signs out. So rather than \(2 \times s\), write \(2s\), and rather than \(8 ...
Meet PhotoMath, an iPhone and Android app that solves math problems photographed with your smartphone’s camera. Simply flip open the app, scan the problem as it appears in the textbook, and the app ...
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