What is the standard form of $y= (x+2)(2x-3)^2$ ?

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Answer 1 · 2016-01-23T15:30:59

$y=4x^3-4x^2-15x+18$

first expands the power root first

$(2x-3)^2$

$(2x-3)(2x-3)$

$4x^2-6x-6x+9$

$4x^2-12x+9$

then , times with $(x+2)$

$y=(4x^2-12x+9)$ $(x+2)$

u will get

$y=4x^3-12x^2+9x+8x^2-24x+18$

$y=4x^3-4x^2-15x+18$

What is the standard form of y= (x+2)(2x-3)^2 y= (x+2)(2x-3)^2 ?