CPM Homework Help : INT1 Problem 11-55

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11-55.

Multiply each pair of polynomials.

$(2a+b)(a−3b)$
Hint (a):
Use a generic rectangle to multiply the polynomials.
Generic rectangle
top edge left $2a$
top edge right $b$
left edge top $a$
interior top left blank
interior top right blank
left edge bottom $-3a$
interior bottom left blank
interior bottom right blank

$( x + 2 ) ( x ^ { 2 } - 2 x + 5 )$

Hint (b):

Generic rectangle top edge left $x^2$

top edge middle $-2x$

top edge right $5$

left edge top $x$

interior top left blank

interior top middle blank

interior top right blank

left edge bottom $2$

interior bottom left blank

interior bottom middle blank

interior bottom right blank

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