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 ...
If the discriminant (b² - 4ac) is negative, the roots are complex numbers. Complex roots always come in conjugate pairs (a + ...
Rewrite the Fraction: First, factor the denominator x² - 4 = (x - 2) (x + 2). Then, rewrite the expression with a common ...
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