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IrinaK [193]
3 years ago
9

12. The width w of a rectangular swimming pool is 7x2. The area A of the pool is 7x3 – 42x2. What is an expression for the lengt

h of the pool? Show your work.
SHOW YOUR WORK SHOW YOUR WORK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Mathematics
1 answer:
KiRa [710]3 years ago
3 0
  A = lw
       7x³ - 42x² = l(7x²)
7x²(x) - 7x²(6) = l(7x²)
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