A42a
The expression is faulty because we don't have + or - before 10a. Also have to assume a2 is a2 . Use the standard formula for solving a quadratic = 0, to get two answers p and q. Then the factorization is (a-p)(a-q).
10a-a2
( a2 ) ( a2+1 )
(a2 + a + a2) = (2a2 + a) = a (2a + 1)
a2 - 4a + 4
a2 + -5a2 - a2 - a = a2 - 5a2 - a2 - a = a2 - 6a2 - a = -5a2 - a
There are lots of ways of taking 30% of 149.99 away from 149.99. It is also the equivalent of getting 70% of it. Assuming the 149.99 is in cell A2, then any of these formulas will do it: =A2 - A2 * 30% =A2 - A2 * 0.3 =A2 * 70% =A2 * 0.7
a2 + a2 = 2a2
a2+9a+20 = (a+4)(a+5) when factored
a2+2a2b+2ab2+b2
5 - a - 1 + c - 6a2 + a2
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