(3x + 5) (- 3x + 5) - x (7x + 8) (7x-8) - (8x) where x = - 2
Original formula = 25-9x ^ 4-x & # 178; (49x & # 178; - 64) - 64x & # 178;
=35-9x^4-49x^4+64x²-64x²
=-58x^4+35
=-928+35
=-893
RELATED INFORMATIONS
- 1. The number of six digits is () A. 40B. 60C. 80D. 10
- 2. Given that a is the integral part of √ 170 and B-1 is the square root of 400, find √ a + B
- 3. We know the equation x2 + (M + 2) x + 2m-1 = 0 about X. (1) prove that the equation has two unequal real roots. (2) when m is the value, the two roots of the equation are opposite to each other? The solution of the equation is obtained
- 4. How to solve 8 + 0.7x = 18-3.3x equation
- 5. The number of six digits is () A. 40B. 60C. 80D. 10
- 6. There is a passage in the eighth grade mathematics textbook: the square root of the positive number a can be represented by √ a, and the negative square root of the positive number a can be represented by - √ a There is a note beside it saying that the symbol √ A is meaningful only when a ≥ 0, but not when a is less than zero. Why
- 7. It is known that the equation M & # 178; X & # 178; + (2m + 3) x + 1 = 0 about X has two reciprocal roots, so we can find the value of real number M
- 8. 7x = 3x-8
- 9. The number of six digits is () A. 40B. 60C. 80D. 10
- 10. If M and N are the square roots of the same number and m ≠ n, what is the value of 3M + 3N?
- 11. If two of the equations X & # 178; + (M & # 178; - 1) x + M = 0 are opposite to each other, then the value of M is
- 12. Square root of 0,3, square root of 6, square root of 3,12, square root of 15, square root of 18, find the law What's the tenth number?
- 13. How many combinations of 123456 numbers
- 14. Write an algorithm for solving the equations {3x-2y = - 27x-y = 18}?
- 15. It is known that the equation of X, two-thirds x-m = x + three-thirds m and two-thirds x + 1 = 3x-2 are reciprocal to each other, and the value of M is obtained
- 16. 3x + 20% x = 16 10% x + 30% = 3.2 how to write these two equations? 3x+20%x=16 10%x+30%=3.2
- 17. How to solve complex equations, such as: 3 (3x-2) = 10-0.5 (x + 3.5)
- 18. How to solve the equation 5 (X -- 10) = 3x -- 6
- 19. How to solve this equation
- 20. Solve the following equation 1. X ^ 2-3x-10 = 0.2. (x + 3) (x-1) = 5 Solve the following equation 1.x^2-3x-10=0 2.(x+3)(x-1)=5 Because can't think out headache. Need to know why become like that, not to know the answer behind, otherwise the exam won't do it