Can someone tell me if this statement is true? 11x^2 + 7(17x -x^2) + 9x = 4x^2 +128x
2007-06-15 16:29:26 · 7 answers · asked by ambi565 2 in Science & Mathematics ➔ Mathematics
yes it is
2007-06-15 16:32:19 · answer #1 · answered by JR 1 · 0⤊ 0⤋
Let's see...
11x^2 + 7(17x -x^2) + 9x = 4x^2 +128x
11x^2 + 7*17x - 7x^2 + 9x = 4x^2 +128x
4x^2 + 119x + 9x = 4x^2 +128x
128x = 128x
x = x
Yes, the original statement is true.
2007-06-15 23:32:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
11x^2 + 7(17x -x^2) + 9x = 4x^2 +128x
11x^2 + 7*17x - 7x^2 + 9x - 4x^2 -128x = 0
4x^2 + 119x + 9x - 4x^2 +128x = 0
128x - 128x = 0
0 = 0
The statement is true.
2007-06-16 00:26:56 · answer #3 · answered by Anonymous · 0⤊ 0⤋
yes its true,
when you expand the left side
11x^2 + 7(17x -x^2) + 9x
= 11x^2 + 119x - 7x^2 + 9x
= 4x^2 + 128x
therefore since the left hand side of the eq is the same as the right hand side of the eq, the statement is true
2007-06-15 23:34:48 · answer #4 · answered by davin 2 · 0⤊ 0⤋
11x^2+7(17x-x^2)+9x = Left Hand Side (L.H.S.)
4x^2+128x = Right Hand Side(R.H.S.)
Therefore L.H.S.= 11x^2+7*17x-7*x^2+9x
= 11x^2+119x-7x^2+9x
Combining Common Terms
= 11x^2-7x^2+119x+9x
= 4x^2+128x
= R.H.S. hence True
From Abhishek(www.eduwizards.com)
2007-06-15 23:47:06 · answer #5 · answered by Anonymous · 0⤊ 0⤋
11x^2 + 7(17x-x^2) + 9x
= 11x^2 + 119x - 7x^2 + 9x
= 11x^2 - 7x^2 + 119x + 9x
= 4x^2 + 128x
It's a true statement.
2007-06-15 23:33:08 · answer #6 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
11x^2+7(17x-x^2)+9x
=11x^2+119x-7x^2+9x
=4x^2+128x
the statement is true.
2007-06-15 23:36:37 · answer #7 · answered by Anonymous · 0⤊ 0⤋