1. Let x =3 and y = -2, solve: 2x²y³
2. Let x = 3 and y = -2, solve: x² - xy + y² -1
3. Let p = 9, q = -4 and r = 5, solve: p =2q -3r
4. Let p= 9, q =4 and r =5, solve: q / 5 - pr
5. Let m = -1 and n = 1, solve: m7 + n4 / m - n
2. Let x = 3 and y = -2, solve: x² - xy + y² -1
3. Let p = 9, q = -4 and r = 5, solve: p =2q -3r
4. Let p= 9, q =4 and r =5, solve: q / 5 - pr
5. Let m = -1 and n = 1, solve: m7 + n4 / m - n
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Answer:
1. 144
2. 18
3. 9=-23
5.-12
Step-by-step explanation:
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