Question

NEED HELP MS ANSWER (don't answer if you dont know thanks)

Answer 1

Identity used:-

• (x+a)(x+b) = x^2+(a+b)x+(a×b)
• (a+b)^2 = a^2+b^2+2ab
• (a-b)^2 = a^2+b^2-2ab
• (a+b)(a-b) = (a)^2-(b)^2

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