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myleefaustin
28.05.2021 •
Mathematics
Solve the equation for x. √x-6+3=10
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Ответ:
Ответ:
(a)![5x^2+7x-4](/tpl/images/0642/4474/b6727.png)
(b)![\text{Length of the third side=}5x^3 -x^2-8x+1](/tpl/images/0642/4474/4059c.png)
(c)Yes
Step-by-step explanation:
Side 1:![3x^2-2x-1](/tpl/images/0642/4474/9b4ed.png)
Side 2:![9x + 2x^2-3](/tpl/images/0642/4474/bd8e7.png)
Perimeter=![5x^3 + 4x^2-x-3](/tpl/images/0642/4474/2ae5c.png)
(a)Total length of the two sides, 1 and 2, of the triangle
(b)Length of the third side of the triangle
Since the perimeter is given, and we have the sum of the other two sides, we simply subtract it from the perimeter,
(c)When adding or subtracting polynomials, their variables and exponents do not change. Only the coefficients will change as in Part (a) and (b). Therefore, polynomials are closed under addition and subtraction.