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b)
c) ×
yg C ini adalah perkalian dua suku dgn dua suku
(a+b)(c+d) = ac +ad +bc+ +bd
Soal : (ax +b)(cx+d) = kita ibaratkan si ax : a
si b : b
si cx : c
si d : d
menurut rumus tadi
Jadi , (ax) (cx) + (ax)(d) +(b)(cx) + (b) (d)
= acx² +adx +bcx +bd
( a + b )( a+ b )
b.
( a - b )( a - b )
c. ( ax + b )( cx + d )
Pola no c
( ax + b )( cx + d )
( ax x cx ) + ( ax x d ) + ( b x cx ) + ( b x d )
Semoga Membantu ^^