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jazzyfa30
 one year ago
Solve the equation by using the Square Root Property.
x^2 = 21  4x
jazzyfa30
 one year ago
Solve the equation by using the Square Root Property. x^2 = 21  4x

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hartnn
 one year ago
Best ResponseYou've already chosen the best response.2do you know how to complete the square ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2x^2+4x = 21 here, the coefficient of 'x' is 4 so, divide it by 2, and take its square, what u get ?

jazzyfa30
 one year ago
Best ResponseYou've already chosen the best response.14/2=2 square root is 1.4

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2we need to SQUARE the result so, 2^2 = 4 now, we add this on both sides., x^2+4x+4 = 21+4 = 25 got this ?? notice something about left side ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2yes, i added the result (here, we got 4) to both sides now notice that left side is a perfect square! isn't it ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2x^2+4x+4 is square of what ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.24 is the square of 2 x^2+4x+4 will be square of \(\large (x+2) \\ (x+2)^2 =x^2+4x+4\) so we have \((x+2)^2=25\) take square root of both sides , what u get ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2yes.. just put +/ in front of 5 x+2=5 or x+2=5

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2can you solve those 2 easy equations ? x+2= 5....x =.. ? x+2=5, ....x=....?

jazzyfa30
 one year ago
Best ResponseYou've already chosen the best response.1hi what happenedy u not on ur regulrs account

jazzyfa30
 one year ago
Best ResponseYou've already chosen the best response.1Solve the equation by factoring: x2 = 18  3x

GoldPhenoix
 one year ago
Best ResponseYou've already chosen the best response.0Does x2 = x^2 And does the = sign suppose to be a + sign?

jazzyfa30
 one year ago
Best ResponseYou've already chosen the best response.1sorry im still waking up x^2=183x

GoldPhenoix
 one year ago
Best ResponseYou've already chosen the best response.0I don't think you can factor that.

jazzyfa30
 one year ago
Best ResponseYou've already chosen the best response.1sorry @hartnn i fell asleep i was up all night literally i didnt geta ounce of sleep until after w finished the problem we just finished

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2\(x^2+3x18=0\) can you tell me 2 numbers with sum = 3 and product = 18 ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2get some rest then! you can continue in the morning ? yes! 6 and 3 are correct :)

jazzyfa30
 one year ago
Best ResponseYou've already chosen the best response.1it is morning hear its 8:30 am

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2so, split up, 3x = 6x3x \(x^2+6x3x18=0\) factor out x from 1st 2 terms and 3 from last 2.....can you ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2there's no  *minus* sign \((x+6)(x3)=0\) is correct final answer! good :)

jazzyfa30
 one year ago
Best ResponseYou've already chosen the best response.1oh yeah im sorry yall

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2and since you need to solve find x from x+6=0 and x3=0

jazzyfa30
 one year ago
Best ResponseYou've already chosen the best response.1thank you 5 more and im going to sleep

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2ok! how about asking new question in new post? :)
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