Determine 3885
Determine the sum of the square roots of 81.
Correct answer:
x =
0
Step-by-step explanation:
x
1
=
8
1
=
9
x
2
=
−
x
1
=
−
9
x
=
x
1
+
x
2
=
9
+
(
−
9
)
=
0
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Determine the sum of the square roots of 81.
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You need to know the following knowledge to solve this word math problem:
arithmetic
square root
Grade of the word problem:
practice for 12 year olds
practice for 13 year olds
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Quadratic equation
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Determine the sum of the square roots of the number 12.
Determine the sum of the three square roots of 343.
Determine the sum of the square roots of the number 25.
Find the product and the sum of the roots of x² + 3x - 9 = 0
Quadratic equation 7x²+bx+c=0 has roots x1 = 67 and x2 = -84. Calculate the coefficients b and c.