#1176 · Algebra · Linear equations

Difference of Two Squares with Complex Numbers

Multiply $3 - 7 - 5 - 2$ by $3 - 7 + 5 - 2$ .

~3 minAnswer checked instantlydifference of squaresimaginary numbers

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. VIII. Surds and Imaginary Quantities, Examples VIII.b, No. 2

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Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).