Question

3. Simplify:
(1) (a + b)(c - d) + (a - b)(c + d) + 2(ac + bd) + 4b(a + c)
(ii) (m + n)(2m + n) + (m + 2n)(m - n) + 4n²
(ii) (1.5x – 4y)(1.5x + 4y + 3) - 4.5x + 5y + (3y)(5y)​

Answer 1

Answer:

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