Algebraeasy · Past Paper
Factorize: 100 - x^2
A(10-x)(10-x)
B(x-10)(x+10)
C(10+x)(10-x)
D(100-x)(1+x)
✓ Correct Answer: C — (10+x)(10-x)
10^2 - x^2 follows the a^2 - b^2 identity.
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