X=4
Explanation
First subtract 4x^2 + 6x from both sides of the equation
X^2 - 8x + 16 = 0
Then let’s factorice the equation using the middle-term break:
x^2 - 4x - 4x + 16 = 0
x (x - 4) - 4 (x - 4) = 0
(x - 4) (x - 4) = 0
(x - 4) ^2 = 0
x = 0
Therefore the solution to the equation is x = 4
Answer:
-42/13 = -3.2307 so my final ans is B or E plz brainliest if am right
Step-by-step explanation:
I don’t know what to round it for ones or tenths
If it’s rounded for once it = -3
And if it’s rounded for tenths = -3.2
Answer:
70-20=x
Step-by-step explanation:
210=3*20+3*necklace
3*necklace=210-3*20
necklace=70-20
'is' in mathematics means equal
'of' in mathematics means multiplication
percent means over 100
84 = 74% * x
84 = 74/100 * x
84 = 37/50 * x
Multiply 50/37 on both sides, so we can isolate 'x'
85 * 50/37 = x
x = 4250/37
x ≈ 114.864865
84 is 74 percent of <span>114.86</span>.