Question

12. If Sreejha wants to level her garden of length (22+5)m and breadth (22-3) metre, then the
area of the garden is
13. The simplification of m (3m² - 27) (3m(m-3)) is
​

Answer 1

• 12)

For the garden,we have

its length=(22+5)=27m

and its breadth=22-3=19m

Area of the garden= l×b

=(27×19)m²=513m²

13) simplification

m(3m²-27){3m(m-3)}

m×3(m²-9){3m(m-3)}

3m×3m[(m²-9)(m-3)}

9m²[{(m)²-(3)²} (m-3)].

using a²- b²= (a+b)(a-b)

9m²(m+3)(m-3)(m-3)

9m²(m+3)(m-3)²

simplified

I hope you will enjoy this .

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