how to factorise 121 a square + 154 AB + 49 b square
Added by Encarnacion G.
Step 1
First, identify the type of quadratic expression we have: it is a perfect square trinomial, because the first and last terms are both squares (11^2 and 7^2, respectively), and the middle term is twice the product of the square roots of the first and last terms Show more…
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