Answer:
4x^2 +2x +16
Step-by-step explanation:
7x2 + 4x + 10) - (3x2 + 2x - 6)
Distribute the minus sign
7x2 + 4x + 10) - 3x2 - 2x + 6
Combine like terms
7x2 + 4x + 10)
- 3x2 - 2x + 6
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4x^2 +2x +16
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Answer: Cards left = 96 ------------------------------------
Answer:
2 lol
Step-by-step explanation:
basic subtraction
Answer:
x^3 + 1/x^3 = 488
Step-by-step explanation:
- x^2 + 1/x^2 = 62
- x^2 + 1/x^2 + 2 = 64
- ( adding 2 in both sides )
- (x + 1/x ) ^2 = 64
- x + 1/x = 8
now,
- ( x+ 1/x ) ^ 3 = 512
- x^3 + 1/x^3 + 3 × x × 1/x ( x + 1/x )
- x^3 + 1/x^3 + 3 ( 8 )
- ( since x + 1/x = 8 )
- x^3 + 1/x^3 + 24 = 512
- x^3 + 1/x^3 = 488
hence, we got x^3 + 1/x^3 = 488
