simplify by using suitable propeties (also state them)
(a) 71× 56+ 29 ×56 =
(b) 135× 52+ 135 × 48 =
(c) 1685 ×16825 - 16825 × 6285=
(d) 569 × 17+569×13+569×70=
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- 100×56^2
- 135^2×100
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Answer:
c
Step-by-step explanation:
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