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oleg27042000
@oleg27042000
September 2021
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Найдите значение выражения:
3 номер весь!
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XopoW
a. (x-4b)(x^2+4xb+16b^2)+64b^3+x^3+b^2 = ?
x=1; b=-2
x^3+4x^2*b+16x*b^2-4bx^2-16b^2*x-64b^3+64b^3+x^3+b^2= 2x^3-64b^3+b^2 =
= 2*1^3-64*(-2)^3+(-2)^2 = 518
б.
1. (-3)^9-1/5*(-3)^2+5*(-3)*5 = -19684/35 = -562,4
2. 4*(-3)^6+4*(-3)^3+4/10*(-3)+10 = 2812 / -20 = -140,6
3. -562,4 / -140,6 = -4
4. -4 - 3 = -7
Ответ:
a. 518; б. -7
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Answers & Comments
x=1; b=-2
x^3+4x^2*b+16x*b^2-4bx^2-16b^2*x-64b^3+64b^3+x^3+b^2= 2x^3-64b^3+b^2 =
= 2*1^3-64*(-2)^3+(-2)^2 = 518
б.
1. (-3)^9-1/5*(-3)^2+5*(-3)*5 = -19684/35 = -562,4
2. 4*(-3)^6+4*(-3)^3+4/10*(-3)+10 = 2812 / -20 = -140,6
3. -562,4 / -140,6 = -4
4. -4 - 3 = -7
Ответ: a. 518; б. -7