Mathematics: Which of the following are solutions?

Which of the following are solutions?

whitakers87

12.03.2022

The idea is we do some, you learn how to do them, and you do the rest. Last quadratic equation for you. Please ask questions if you're confused.

On this one I'll teach you a shortcut called the Shakespeare Quadratic Formula (2b or -2b):

$x^2 - 2bx + c \textrm{ has zeros } x=b \pm \sqrt{b^2-c}$

Let's do our problem.

x^2 - 8x + 16 = 11

x^2 - 8x + 5 = 0

Shakespeare Quadratic formula time; we have a -8x so b=4:

$x = 4 \pm \sqrt{4^2-5}= 4\pm \sqrt{11}$

B C

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logan797

26.12.2021

x=110

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles

45+65 = x

110 =x

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