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h(25)=2.25+9=50+9=59
5. f(x)=-x+3
Domain={-2,-1,0,1,2}
f(-2)=-(-2)+3=2+3=5
f(-1)=-(-1)+3=1+3=4
f(0)=0+3=3
f(1)=-1+3=2
f(2)=-2+3=1
Range={1,2,3,4,5}
Gambar grafik terlampir
4. (7x-56²)/(x²-64²)=7(x-56²)/(x-64)(x+64)
(mungkin salah menulis soal ya???)
3. Soalnya tidak ada. Hanya rumus (p+q)²=p²+2pq+q² dan (3 1/3 + 6 2/3)²=(3 1/3)²+2(3 1/3)(6 2/3)+(6 2/3)²
2. (4x-1)(7x+2)=28x²-7x+8x-2=28x²+x-2
1. 5(6x²+2x-1)-7(x²+2x)=30x²+10x-5-7x²-14x=23x²-4x-5
Semangat!