Solve the equation X^2+4X-10=0 to the nearest tenth.

x = 5.7

Step-by-step explanation:

Add 10 to both sides of the equation. x 2 − 4 x = 10 To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of b . ( b 2 ) 2 = ( − 2 ) 2 Add the term to each side of the equation. x 2 − 4 x + ( − 2 ) 2 = 10 + ( − 2 ) 2 Simplify the equation. Tap for more steps... x 2 − 4 x + 4 = 14 Factor the perfect trinomial square into ( x − 2 ) 2 . ( x − 2 ) 2 = 14 Solve the equation for x . Tap for more steps... x = ± √ 14 + 2 The result can be shown in multiple forms. Exact Form: x = ± √ 14 + 2 Decimal Form: x = 5.74165738 … , − 1.74165738 …

1,8,15,22,29,36,43,50

step-by-step explanation:

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answer: d.) the total number of protons and neutrons is 15

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