PDF chapter test TRY NOW
1. Evaluate \(51 \times 52\) using suitable identity.
Answer:
\(51 \times 52 =\)
2. Simplify:
\((a + b)^2 - 4ab =\)
3. If \(a + b = 10\) and \(ab = 18\), find the value of \(a^2 + b^2\).
Answer:
\(a^2 + b^2 =\)
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