Question

Q5)
Solve the
1) Form quadratic equations if the area of rectangle
whose length is greater than breadth by 5 cm is 45
sq. cm​

Answer 1

Answer~

• breadth = a
• length = a + 5

➦ Area of rectangle = length x breadth

➦ It is given that area is 45.

➩ Length x breadth = 45

➩( a ) x ( a + 5 ) = 45

➩ a² + 5a = 45

➩ a² + 5a - 45 = 0

★ So equation is a² + 5a - 45 = 0

Answer 2

Answer:

b² + 5b - 45 = 0

Step-by-step explanation:

area = l * b = (b+5)b = b² + 5b

45 = b² + 5b

b² + 5b - 45 = 0