Respuesta:
-7d(d²f³)(-10d⁵f³)
[tex]-7d\left(d^2f^3\right)\left(-10d^5f^3\right)\\\\-7d\left(d^2f^3\right)\left(-10d^5f^3\right)\\\\=7dd^2f^3\cdot \:10d^5f^3\\\\=70dd^2f^3d^5f^3\\\\=70d^8f^3f^3\\\\=70d^8f^6[/tex]
(2X + 3y) (-4X + y)
[tex]\left(2X+3y\right)\left(-4X+y\right)\\\\=2X\left(-4X\right)+2Xy+3y\left(-4X\right)+3yy\\\\=-2\cdot \:4XX+2Xy-3\cdot \:4Xy+3yy\\\\=-8X^2-10Xy+3y^2[/tex]
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Verified answer
Respuesta:
-7d(d²f³)(-10d⁵f³)
[tex]-7d\left(d^2f^3\right)\left(-10d^5f^3\right)\\\\-7d\left(d^2f^3\right)\left(-10d^5f^3\right)\\\\=7dd^2f^3\cdot \:10d^5f^3\\\\=70dd^2f^3d^5f^3\\\\=70d^8f^3f^3\\\\=70d^8f^6[/tex]
(2X + 3y) (-4X + y)
[tex]\left(2X+3y\right)\left(-4X+y\right)\\\\=2X\left(-4X\right)+2Xy+3y\left(-4X\right)+3yy\\\\=-2\cdot \:4XX+2Xy-3\cdot \:4Xy+3yy\\\\=-8X^2-10Xy+3y^2[/tex]