montgomerykarloxc24x
05.05.2020 •
Mathematics
Solve using the quadratic formula.
– 2^2 + 3x + 7 = 0
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Ответ:
x=−1
Step-by-step explanation
Step 1: Simplify both sides of the equation.
−22+3x+7=0
−4+3x+7=0
(3x)+(−4+7)=0(Combine Like Terms)
3x+3=0
3x+3=0
Step 2: Subtract 3 from both sides.
3x+3−3=0−3
3x=−3
Step 3: Divide both sides by 3.
3x
3
=
−3
3
x=−1
Ответ:
Do the same with the 75