Question

1. Jika p=-3;q=4;danr=5; maka hitunglah:
a.4p²-q-r²
b.-p²-q²-r²
2. Sederhanakan bentuk2 aljabar brikut!
a 2x+y-2(2x-5)
b.5q-2b+4-5(a+2b)
c.(2x+3y)2+3(3x+2y)
d.-5(2p-3q)+4{1/2p-3/4q)

Answer 1

1. a.4p²-q-r²
= 4(3)²-(4)-(5)²
= 4(9)-4-25
= 36-4-25
= 7

b.-p²-q²-r²
= -(3)²-(4)²-(5)²
= -9-16-25
= -50

2. a 2x+y-2(2x-5)
= 2x+y-4x+10
= -2x+y+10

b.5q-2b+4-5(a+2b)
= 5q-2b+4-5a-10b
= 5q-5a-12b+4

c.(2x+3y)2+3(3x+2y)
= 4x+6y+9x+6y
= 13x+12y

d.-5(2p-3q)+4{1/2p-3/4q)
= -10p+15q+2p-3q
= -8p+12q

Answer 2

Smoga bnar dan jdikan jwaban terbaik ya