Simplify: b)(x²-2x+3)(3x²+5x-7)-(3x²-2x+5)(2x+5)
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3x^4+5x^3-7x^2-6x^3-10x^2+14x+9x^2+15x-21-(6x^3+15x^2-4x^2-10x+10x+25)
=3x^4-x^3-8x^2+29x-21-6x^3-11x^2-25
=3x^4-7x^3-19x^2+29x-46
=3x^4-x^3-8x^2+29x-21-6x^3-11x^2-25
=3x^4-7x^3-19x^2+29x-46
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0
Answer:
oh I hope it's right answer
Step-by-step explanation:
3x⁴-7x³-19x²+29x-46
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