(0.7x+5-8)² alguien me puede ayudar a resolverla plis :(
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(0.7x+5-8)2=46.31 Aunque no estoy uun poco segura
luzspg987:
jajaja sorry me falto poner eso se supone que tengo que sacar raiz cuadrada de 46.31 y me sale a 6.8 y tengo que ponerlo lo de mas menos para que tener dos soluciones de x
Simplifying
(0.7x + 5 + -8) * 2 = 46.31
Reorder the terms:
(5 + -8 + 0.7x) * 2 = 46.31
Combine like terms: 5 + -8 = -3
(-3 + 0.7x) * 2 = 46.31
Reorder the terms for easier multiplication:
2(-3 + 0.7x) = 46.31
(-3 * 2 + 0.7x * 2) = 46.31
(-6 + 1.4x) = 46.31
(0.7x + 5 + -8) * 2 = 46.31
Reorder the terms:
(5 + -8 + 0.7x) * 2 = 46.31
Combine like terms: 5 + -8 = -3
(-3 + 0.7x) * 2 = 46.31
Reorder the terms for easier multiplication:
2(-3 + 0.7x) = 46.31
(-3 * 2 + 0.7x * 2) = 46.31
(-6 + 1.4x) = 46.31
Solving
-6 + 1.4x = 46.31
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '6' to each side of the equation.
-6 + 6 + 1.4x = 46.31 + 6
Combine like terms: -6 + 6 = 0
0 + 1.4x = 46.31 + 6
1.4x = 46.31 + 6
Combine like terms: 46.31 + 6 = 52.31
1.4x = 52.31
Divide each side by '1.4'.
x = 37.36428571
-6 + 1.4x = 46.31
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '6' to each side of the equation.
-6 + 6 + 1.4x = 46.31 + 6
Combine like terms: -6 + 6 = 0
0 + 1.4x = 46.31 + 6
1.4x = 46.31 + 6
Combine like terms: 46.31 + 6 = 52.31
1.4x = 52.31
Divide each side by '1.4'.
x = 37.36428571
Simplifying
x = 37.36428571
x = 37.36428571
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