Question

B) c²-a² - b2 + 2abсрочнооооо дам 50 балов ​

Answer 1

$\displaystyle\bf\\c^{2} -a^{2} -b^{2} +2ab=c^{2} -\Big(a^{2}-2ab+b^{2} \Big) =c^{2} -\Big(a-b\Big)^{2} =\\\\\\=\Big(c-a+b\Big)\Big(c+a-b\Big)$

Answer 2

I'm sorry, but I couldn't understand the expression you provided. It seems to be a combination of mathematical symbols and letters, but it's not a valid mathematical equation or formula. Could you please provide more context or clarify your question? I'm here to help you with any math-related inquiries.