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In which of the following expressions, p...

In which of the following expressions, prime factorisation has been done?(a)  24 = 2 × 3 × 4             (b)  56 = 7 × 2 × 2 × 2(c)  70 = 2 × 5 × 7             (d)  54 = 2 × 3 × 9

Text Solution

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1 and 4 are not prime factors
2 and 3 are prime factors.
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In which of the following expressions, prime factorization has been done? (i) 24=2\ xx\ 3\ xx\ 4 (ii) 56=1\ xx\ 7\ xx\ 2\ xx\ 2\ xx\ 2 (iii) 70=2\ xx\ 5\ xx\ 7\ (iv) 54=2\ xx\ 3\ xx\ 9

The exponent of 2 in the prime factorisation of 144 , is (a) 4 (b) 5 (c) 6 (d) 3

Knowledge Check

  • (3x^4+2x^3-7)+(4x^6-5x^3+9) Which of the following expressions is equivalent to the expressions above?

    A
    `4x^6+3x^4-3x^3+2`
    B
    `4x^6+3x^4+7x^3+2`
    C
    `4x^6+3x^4-5x^3+2`
    D
    `7x^(10)-3x^3+2`

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