Algebraeasy · Past Paper
Multiply (x + 1) and (x - 1).
Ax^2 + 1
Bx^2 - 1
Cx^2 + 2x + 1
Dx^2 - 2x + 1
✓ Correct Answer: B — x^2 - 1
Apply (a+b)(a-b) = a^2 - b^2.
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✓ Correct Answer: B — x^2 - 1
Apply (a+b)(a-b) = a^2 - b^2.
Share this question