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what is six inches less than four times the width ​

Sagot :

Answer:

Let w = the width

Let 4w + 6 = the length

A = lw

130 = w(4w+6)

130 = 4w2 + 6w

4w2 + 6w - 130 = 0    Divide both sides by 2.

2w2 + 3w - 65 = 0

(2w + 13)(w - 5) = 0

2w + 13 = 0  and   w - 5 = 0

2w = -13     and    w = 5 inches

w = -6.5  (illogical answer)

l = 4w + 6  

l = 4(5) + 6 = 20 + 6

length = 26 inches

Step-by-step explanation: