a^2+10a+21\a^2+6a-7\a+3\^2-1
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2 ta2 29) (a+b) 102) x (b+c) to? Х (c+a) reduces to (€) 2 to? V x c² to x taz
Step-by-step explanation:
z3 exhug2₹+,₹2+: ig h2wh, u4
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