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Division of a Monomial by Another Monomial

The value of ...

Question

Question 29

The value of $(- 27 x^{2} y) \div (- 9 x y)$ is
a) $3 x y$
b) $- 3 x y$
c) $- 3 x$
d) $3 x$

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Solution

d) $3 x$

$\to$ We have,
$(- 27 x^{2} y) \div (- 9 x y) = \frac{- 27 x^{2} y}{- 9 x y} = \frac{27 \times x \times x \times y}{9 \times x \times y} = \frac{27}{9} x = 3 x$

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Q. Question 29

The value of

(- 27 x^{2} y) \div (- 9 x y)

3 x y

- 3 x y

- 3 x

3 x

Q. If (A = 3y + 9x - 3xy)
(B = 6x - 2y + 3xy)
(C = 9x - 3xy - y), then find (A + B - C).

27 x^{3} + y^{3} + z^{3} - 9 x y z

A = 2 y^{2} + 3 x - x^{2}, B = 3 x^{2} - y^{2}

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Let A = 3 y^{2} + 9 x - 3 x^{2}, B = 6 x^{2} - 2 y^{2} + 3 x, C = 9 x^{2} - 3 x y - y^{2} . Find A + B - C.

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Division of a Monomial by Another Monomial

Standard VIII Mathematics

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