Answer:
Step-by-step explanation:
=\left(21\left(-3\right)-\left(-3\right)\cdot \:9\right)+\left(21\cdot \:9+\left(-3\right)\left(-3\right)\right)i
Answer:
What is your question dude???
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
if the expression is + 10x + 25, then the binomial factors will be the same which is (x+5)(x+5).
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