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Friday, 7 February 2020
Algebraic Formulae- Expansion of Squares 7th STD (Practice Set 51)
Use the formula to multiply the following:
1)
(x + y) (x - y)
2)
(3x - 5) (3x + 5)
3)
(a + 6) (a - 6)
4)
(x/5 + 6) (x/5 - 6)
Use the formula to find the values:
1)
502X 498
2)
97X 103
3)
54X 46
4)
98X 102
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