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1
Consider the equation (x-2)(2x - 3) = (x-2)(x + 5). Lulu chooses to multiply through 1/x-2 and gets
answer x = 8. But Poindexter points out that x = 2 is also an answer, which Lulu missed.
x-2
a.
b.
What's the problem with Lulu's approach?
X-
42
Use factoring to solve the original equation for x.
and gets the
Sagot :
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