factorise the polynomial (x²-2x+3)(x²-2x+5)-35.
and plz take it seriously
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Step-by-step explanation:
given : (x^2-2x+3)(x^2-2x+5)-35
x^2(x^2-2x+5)-2x(x^2-2x+5)+3(x^2-2x+5)-35
x^4-2x^3+5x^2-2x^3+4x^2-10x+3x^2-6x +15-35
x^4-2x^3-2x^3+ 5x^2+4x^2+3x^2-10x-6x+15-35
x^4- 4x^3+9x^2-16x-20
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