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ADVANCED LEVELx² + y2 – z2 + 2xy7. Simplify x² - y2 – 2² – 2yz' |
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Answer» Step-by-step explanation: x²+y²+2xy =( x+y)² total:(x+y)²-z² simplify USING (a+b)(a-b)=a²-b² identity let x+y=a & z=b a²-b² (x+y+z)(x+y-z) is SIMPLIFIED form only one question or any other please rate me so that I can FIGURE out |
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