Question

solve plese...............​

Answer 1

Given :

• Length of rectangle = (x+2) cm
• Breadth of rectangle = (x-5) cm
• Area of rectangle = 60 cm²

To find :

Form equation

Formula used :

Area of rectangle = Length × Breadth

Solution :

Area = (x+2) × (x-5)

60 = x² - 5x + 2x - 10

x² - 3x - 10 - 60 = 0

x² - 3x - 70 = 0

ANSWER -

Option B) x² - 3x - 70 = 0

Additional information -

• Perimeter of rectangle = 2(length + Breadth)
• For p(x) = ax² + bx + c ,
• $\sf \implies \: x \: = \dfrac{ - b \: \pm \: \sqrt{ {b}^{2} - 4ac } }{2a}$

Answer 2

Given :

• Length of rectangle = (x+2) cm

• Breadth of rectangle = (x-5) cm

• Area of rectangle = 60 cm²

To find :

Form equation

Formula used :

Area of rectangle = Length × Breadth

Solution :

Area = (x+2) × (x-5)

60 = x² - 5x + 2x - 10

x² - 3x - 10 - 60 = 0

x² - 3x - 70 = 0

ANSWER -

Option B) x² - 3x - 70 = 0

Additional information -

Perimeter of rectangle = 2(length + Breadth)