Diketahui A= 4x + y dan B=2x - 5y tentukan hasil operasi berikut
a. A+B. c. A + 4B
b. A - B d. 3A - 2B
plisss bantu ya
a. A+B. c. A + 4B
b. A - B d. 3A - 2B
plisss bantu ya
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A=4x+y,B=2x-5y
a).A+B=(4x+y)+(2x-5y)
=4x+y+2x-5y
=4x+2x+y-5y
=6x-4y
b).A-B=(4x+y)-(2x-5y)
=4x+y-2x+5y
=4x-2x+y+5y
=2x+6y
c).A+4B=(4x+y)+4(2x-5y)
=(4x+y)+8x-20y
=4x+8x+y-20y
=12x-19y
d).3A-2B=3 (4x+y)-2(2x-5y)
=12x+3y-4x+10y
=12x-4x+3y+10y
=8x+13y