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x^2-9x=36
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x^2 - 9x - 36 = 0 to solve this we need to factor can u do this?
idk
ok this will factor to the form (x +/- a)(x +/- b) = 0 the values of a and b will have ab = -36 and a + b = -9
factoring -36 will help -36 = -2*2*3*3
ok thanks
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yw note 3*-12 = 36 and 3 + -12 = -9
** 3* -12 = -36
so -12 and 3
no -3 and 12
yes giving (x - 12)(x + 3) on expanding the middle term becomes -12x + 3x = -9x
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ok thanks alot '')
-12 and + 3
your first post was correct +12 and -3 = +9
k
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