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What is the answer
1.)5×-3,for×=7
2.)2×to the second power2 -1,for×=-5
3.)4×to the second power2+3,for×=1/2
4.)9×to the second power2-3×+1,for=-1/3
5.)16-×to the second power2,for×=4


Sagot :

1. 5(7)-3
35-3
Answer: 32
2. 2(-5)^2 - 1
2(25) - 1
50-1
Answer: 49
3. 4(1/2)^2 + 3
4(1/4) + 3
1+4
Answer: 5
4. 9(-1/3)^2 -3(-1/3)+1
9(1/9)+1+1
1+1+1
Answer: 3
5. 16-(4)^2
16-16
Answer: 0