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alanaruth3389
10.04.2020 •
Mathematics
A portion of the Quadratic Formula proof is shown. Fill in the missing reason.
Statements
Reasons
ax2 + bx + c = 0
Given
ax2 + bx = −c
Subtract c from both sides of the equation
Divide both sides of the equation by a
Complete the square and add to both sides
Square on the right side of the equation
Find a common denominator on the right side of the equation
Add the fractions together on the right side of the equation
?
Rewrite the perfect square trinomial as a binomial squared on the left side of the equation
Take the square root of both sides of the equation
Multiply both sides of the equation by 2
Square the left side of the equation
Solved
Show answers
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Ответ:
see the procedure
Step-by-step explanation:
we have
step 1
Subtract c from both sides of the equation
step 2
Factor the leading coefficient a
step 3
Complete the square and add to both sides
step 4
Divide both sides of the equation by a
step 5
Find a common denominator on the right side of the equation and adds the fractions together on the right side of the equation
step 6
Rewrite the perfect square trinomial as a binomial squared on the left side of the equation
step 7
Take the square root of both sides of the equation
step 8
Subtract both sides of the equation by the term b/2a
step 9
Rewrite the final expression
Ответ:
x=0
step-by-step explanation:
2(x+2)=x-4
so 2x+4=x-4
x=0