ab(x2+1)+x(a2-b2) Factorise
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Step-by-step explanation:
ab ( x ^ 2 +1 ) + x ( a ^ 2 + b ^ 2 ) =
abx ^ 2 + ab + xa ^ 2 + xb ^ 2 =
abx ^ 2 + x ^ 2 + ab + xb ^ 2 =
ax ( bx + a ) + b [ a + bx ) = ( bx + a ) ( ax + b )
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