(3x²-1) x (2x+5) + (x²+5x+2) (6x)
need complete step by step derivation
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Step-by-step explanation:
(3x^2 -1)(2x+5) +(x^2+5x+2)(6x)
=>[3x^2(2x+5)-1(2x+5)]+(6x^3 +30x^2+12x)
=>(6x^3 +15x^2) - (2x+5) +(6x^3+30x^2+12x)
=>6x^3+15x^2 - 2x-5 + 6x^3 + 30x^2+12x
=> 6x^3+6x^3 +15x^2+30x^2 -2x+12x-5
=> 12x^3+45x^2+10x-5
I hope this will help you
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