Question

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(i) (5a + 6b)?​

Answer 1

Answer:

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(5a+6b)²

=(5a)²+(6b)²+2(5b)(6b)

=25a²+36b²+60ab

Answer 2

Answer:

Step-by-step explanation:

25a^2+36b^2+60ab                    (by (a+b)^2=a^2+b^2+2ab)