Mathematics

need help, multiply and simplify answer,(5t²-t-7)(8t²+5t-1)  answer= ______


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yassautumn

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[latex](5t^2-t-7)(8t^2+5t-1)=\\ 40t^4+25t^3-5t^2-8t^3-5t^2+t-56t^2-35t+7=\\ 40t^4+17t^3-66t^2-34t+7 [/latex]

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