2 years ago

2. Factorise: a - b - a + b2.square

1 answer:

7 0

A - a removes both a’s from equation, then you’re left with b + bsquared, since they are unknown values you cannot combine them, even if it is the same letter, you can only add and subtract unknown values with their same letters together.

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3 years ago

2. Factorise: a - b - a + b2.square ​

2. Factorise: a - b - a + b2.square