Question

Find the value of cuberoot 729 x 700 x 2 x 49 x 5

Answer 1

Step-by-step explanation:

(i) 700 × 2 × 49 × 5

= 2 × 2 × 5 × 5 ×7 × 2 × 7 × 7 × 5

= (2 × 2 × 2) × (5 × 5 × 5) × (7 × 7 ×7)

= 2 × 5 × 10 = 70

(ii) -216 × 1728

= -(2 × 2 × 2 × 3 × 3 × 3) × (2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3)

= -2 × 3 × 2 × 2 × 3 = -72

(iii) -64 × -125

= -(4 × 4 × 4) × -(5 × 5 × 5)

= -4 × -5 = 20

(iv) -(27/343) = ( 3 × 3 × 3)/(7 × 7 × 7) = -(3/7)

(v) 729/-1331 = (9 × 9 × 9)/ -(11 × 11 × 11) = -(9/11)

(vi) 250.047 = 250047/1000

= (3 × 3 × 3) × (3 × 3 × 3) × (7 × 7 ×7)/(10 × 10 × 10)

= (3 × 3 × 7)/10 = 63/10 = 6.3

(vii) -175616

= -[(2 × 2 × 2) × (2 × 2 ×2) × (2 × 2 × 2) × (7 × 7 × 7)]

= -[2 × 2 × 2 × 7] = -56

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Answer 2

Answer:

your answer will be -56

Step-by-step explanation:

hope it's helpful