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tia_tia [17]
3 years ago
12

Solve x2 + 6x = 7 by completing the square. Which is the solution set of the equation?

Mathematics
1 answer:
satela [25.4K]3 years ago
7 0
The answer is x=1 and x=-7
x^2+6x=7
x^2+6x-7=0
(x+7)(x-1)
x=-7 x=1
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What properties can be used to solve 7y-15=-29. Identity property of multiplication,addition property of equality ,distributive
Sveta_85 [38]

Answer:

Addition Property of Equality.

Inverse property of multiplication.

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7y-15=-29

First of all, let us use Addition Property of Equality.

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7y-15+15=-29+15\\\Rightarrow 7y=-14

Now, let us Inverse property of multiplication.

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Addition Property of Equality.

Inverse property of multiplication.

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