mutiply 8x³-6x²+10x+15 by 5x+1
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Answer:
(8x³-6x²+10x+15) (5x+1)
Applying distributive property :
= 5x(8x³-6x²+10x+15) +1(8x³-6x²+10x+15)
Multiply 5x and 1 with each term in the bracket :
=40x⁴-30x³+50x²+75x + 8x³-6x²+10x+15
Bring numbers with same variables together and add/subtract
=40x⁴-30x³+8x³+50x²-6x²+75x+10x+15
=40x⁴-22x³+44x²+85x+15
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