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# help

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Find the area of the walkway.

Jul 7, 2020

#1
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It appears to me that several values for x would work in number 1.  I don't know how to solve it.  Sorry.

2.   Factor fully by grouping:   5x2 + 15x +4x + 12

I'm not sure what "by grouping" means, but I can factor the quadratic for you.

First add 15x and 4x                5x2 + 19x + 12

This will factor to                      (5x + 4)(x + 3)

.

Jul 8, 2020
#2
+1470
-1

deleted///////

Jul 8, 2020
edited by Dragan  Jul 8, 2020
#4
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On what basis do you say that 2x + 7 = 0 ?

And if it were accurate, then x would equal –3.5 not +3.5.

If you can't explain those, then I have to call bogus on this one.

.

Guest Jul 8, 2020
#5
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I was using this equation to find an x; and, it worked.

Guest Jul 8, 2020
#6
+1470
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It didn't work; it was wrong!!!!

Dragan  Jul 8, 2020
#3
+30681
+1

I think we need the dimensions of the pool ....or the value of 'x' to calculate this

without these ,   the answer I get is

area = 16x^2+8x

Jul 8, 2020