1) 25x-1 = 22x-1 – 100 , find x
2) X = 21/3 + 22/3 , show that x3 – 6x = 6
3) Find - – 6x = 6
4) Find - √ 42 × 34 × (cube – root3-3 ) √5-2 ÷ 6th root 312 × 5-6
5) If ax = by =cz and b2 = ac , then show that y = 2zx ÷ z + x
6) If x = 6 - √35 , find x3 + 1 / x3
please answer fast
6.
5. ax = by = cz = k
⇒ ax = k , by = k , cz = k
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