Question

a
(ii) (4a + 3b)2 – (4a - 3b)2 + 48 a
5. If a + b = 7 and ab = 10; find a -
6. If a - b = 7 and ab = 18; find a +
7
u
7. If x + y =
and xy =
5.
find :
2
(ii) x2 - y2
(i) x - y​

Answer 1

Step-by-step explanation:

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