Plz plz solve this it's very very very argent plz my online exam are going plz answer me this plz plz
plz plz plz plz plz
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Step-by-step explanation:
1) 7xyz-9
2)
3) (1)³+(-1)³+(2)³-3(1×-1×2)
1-1+8-3×-2
8+6
14
4) [7x²+8x+(-4)] + (x²-6x+45)
7x²+8x-4+x²-6x+45
8x²+2x+41
5) 4(a+7)=36
4a+28=36
4a=36-28
4a=8
a=8/2
a=2
6) 3(-2)²-5(-2)+1
3×4+10+1
12+11
23
Pls mark me as brainliest
Hope it helps h dude
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