Question

7. The length of a rectangle is 3x2 +5x-1 and its width is 3x + 1. Find its perimeter.​

Answer 1

Step-by-step explanation:

The opposite process, a liquid becoming a solid, is called solidification. For any pure substance, the temperature at which melting occurs—known as the melting point—is a characteristic of that substance. It requires energy for a solid to melt into a liquid.

PLEASE MAKE ME BRAINLIESTED ANSWER

Answer 2

$\huge\mathbb\fcolorbox{purple}{lavenderblush}{✰Answer}$

For a rectangle, area is A=lw and perimeter is P=2l+2w, where l is the length and w is the width.

Let x = length and x−4 = width.

The area equation to solve becomes x(x−4)=96, or x2−4x−96=0.

To factor, find two numbers the sum to -4 and multiply to -96. -12 and 8 will work:

x2 + 8x - 12x - 96 = 0

x(x + 8) - 12(x + 8) = 0

(x - 12)(x + 8) = 0

Set each factor equal to zero and solve:

x=12 or x=−8.

Therefore the length is 12cm and the width is 8cm, giving a perimeter of 40cm.

______________________________________________

#нσρє íт нєℓρѕ♡~

#мαяк αѕ вяαíηℓíѕт☘️