Bentuk perkalian aljabar dengan caranya a. 2x(-3x+4y-5r)= b. (5a+2)(3a+4)= c. (2p-7)(4p-5)= d. (5x + 4y)(5x -6y)= e. (6m-2n)(6m-n)=

Penyelesaian :

Operasi perkalian aljabar
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a] -6x² + 8xy – 10xr.

b] 5a[3a + 4a] + 2[3a + 4a]
15a² + 20a² + 6a + 8a
= 35a² + 14a.

c] 2p[4p – 5] + -7[4p – 5]
8p² – 10 – 28p + 35
8p² – 28p – 10 + 35
= 8p² – 28p + 25.

d] 5x[5x – 6y] + 4y[5x – 6y]
25x² – 30xy + 20xy – 24y²
= 25x² – 24y² – 10xy.

e] 6m[6m – n] + -2n[6m – n]
36m² – 6mn – 12mn + 2n²
= 36m² + 2n² – 18mn.

Salam Alaikum.