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(x - 2)²how can this be (x-2)(x+2) is it because u can multiply the exponent in to get (x^2+4)? but i thought you could not do that you isntead would get (x-2)(x-2) instead does this rule only apply for stuff like (5x+3)^2=(5x+3)(5x+3) ..(5x-3)^2=(5x-3)(5x-3) are these two correct can you explain in more deail thank youby a² - b² = (a + b)(a - b)
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