Answer:
x = 1.47 or x = -7.47
Step-by-step explanation:
x²+6x+9=20
This is a quadratic equation
x²+6x+9-20=0
x²+6x-11=0
Step 1 : Write the quadratic formula
x = <u>-b±√b²-4(a)(c)</u>
2a
Step 2 : Substitute values in the formula
a = 1
b = 6
c = -11
x = <u>-6±√6²-4(1)(-11)</u>
2(1)
x = <u>-6±√80</u>
2
x = -3 + 2√5 or x = -3 - 2√5
x = 1.47 or x = -7.47
!!
C. There is no solution.
6(x＋4)＝5(x－5)＋x
6x＋24＝5x－25＋x
6x＋24＝6x－25
24＝－25
The statement is false for any value of x
∴ There is no solution.
Hope my answer helped u :)
Hotel a cause 40 x 4 = 160 which is under 175
