Jassminid
Jassminid
Mathematics
Answered
expand and simplify this
can you help
(2
x
²
−3x+4) (
x
²
+5x−7)
Sagot :
Lilithid
Lilithid
[tex](2x^2-3x+4) ( x^2+5x-7)= \\ \\=2x^2*x^2+2x^2*5x-2x^2*7-3x*x^2-3x*5x+3x*7+4*x^2+4*5x-4*7=\\ \\=2x^4+10x^3-14x^2 -3 x^3-15x^2+21x +4 x^2+20x-28=\\ \\=2x^4+7x^3-25x^2 +41x -28[/tex]
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