ab(x^2+1)+x(a^2+b^2)-factorise
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Answer:
Step-by-step explanation:
ab(x²+1)+x(a²+b²)
= abx²+ab+xa²+xb²
= abx²+xb²+xa²+ab
= bx(ax+b)+a(ax+b)
= (ax+b)(bx+a)
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