Choose the correct answer — task. Maths CBSE Homework Assignments, Class 8.

1. Which of the following is correct.

\((a – b)^2 = a^2-2ab+b^2\)
\((a – b)^2 = a^2+2ab-b^2\)
\((a + b)^2 = a^2+2ab-b^2\)
\((a – b)^2 = a^2-b^2\)

2. Square of \(3x – 4y\) is

\(9x^2 – 16y^2\)
\(9x^2 + 16y^2 + 24xy\)
\(9x^2 + 16y^2 – 24xy\)
\(6x^2 – 8y^2\)

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