What is the first step in solving the quadratic equation -5x^2+8=133? taking the square root of both sides of the equation
subtracting 8 from both sides of the equation
squaring both sides of the equation
adding 8 to both sides of the equation

subtracting 8 from both sides of the equation

Step-by-step explanation:

Step-by-step explanation:

-5x²+8=133

-5x²=133-8

-5x²=125

x²=-25 dividing 125 by -5

x=√-25Taking square root of -25

x=±5

Hope this might help you...

europa2433

europa2433

step-by-step explanation:

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40