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10 questions from this quiz
Expanding
a2−b2=(a+b)(a−b)a^2 - b^2 = (a + b)(a - b)a2−b2=(a+b)(a−b)
49−p449 - p^449−p4
−(a−2)-(a - 2)−(a−2)
Four terms, no common factor for all
The same sign
x3+y3=(x+y)(x2−xy+y2)x^3 + y^3 = (x + y)(x^2 - xy + y^2)x3+y3=(x+y)(x2−xy+y2)
(a−1)(a2+a+1)(a - 1)(a^2 + a + 1)(a−1)(a2+a+1)
Look for common factors
2x(1−3x)2x(1 - 3x)2x(1−3x)
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