Question

Please Solve it , i have too much time , ​

Answer 1

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(i) 25a² - 35a + 12

25a² - 20a - 15a + 12

5a(5a - 4) - 3(5a - 4)

(5a - 3) (5a - 4)

अतः इस आयत की लंबाई और चौड़ाई क्रमशः (5a - 3)

एवं (5a - 4) है ।

(ii) 35y² + 13y - 12

35y² + 28y - 15y - 12

7y(5y + 4) - 3(5y + 4)

(5y + 4) (7y - 3)

अतः इस आयत की लंबाई और चौड़ाई क्रमशः (5y + 4)

एवं (7y - 3) है ।

Answer 2

Answer:

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Step-by-step explanation:

Answers:

Given that the area of the rectangle is of the form 25a² -35a+12

To find:

The dimensions of the rectangle

•Factors of the equation would be the length and breadth of the rectangle

Factorizing

25a²-35a+12=0

→25a²-20a-15a+12=0

→5a(5a-4)-3(5a-4)=0

→(5a-4)(5a-3)=0

→5a-4=0 or 5a-3=0

→a=4/5 or 3/5

The length and breadth could be 4/5 units and 3/5 units

______________

Given Area:

35y²+13y-12

To Find :Length and Breadth

Solution :

Factorising 35y²+13y-12

[By mid term spilting]

35y²+13y-12

35y²+28y-25y-12

7y(5y+4)-3(5y+4)

(5y+4) (7y-3)

Length = 7y-3

Breadth = 5y+4