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anonymous
 one year ago
Solve each quadratic equation. Show your work
Where do i start?
4x^2 = 100
anonymous
 one year ago
Solve each quadratic equation. Show your work Where do i start? 4x^2 = 100

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.2divide both sides by 4 to isolate x^2: x^2 = 25 can you continue?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0that will give the answer right

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2well you need to find the value of x x ^2 means x times x so you need to think of a number which when multiplied by itself gives 25 ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay. 4x^2/4 100/4 = 25

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Does that get rid of the x^2?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the work shown should help get the solution which i think is 25

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do i have x^2 any more or does it go with the 4 @welshfella ?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2no 25 is not the solution we have x^2 = 25 so x = ?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2no the solution is the value of x we know that x times x = 25 so what must x be?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2Not 4 because 4*4 = 16 not 25

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How do we find the value of x?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2x is the square root of 25 that is the number that when multiplied by itself gives 25 for example 3 is square root of 9 as 3 * 3 = 9

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hold on let me try to figure this out

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2what times what = 25?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so you would use square root

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2no  thats the SQUARE of 25 25*25 = 625

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay what do you think

welshfella
 one year ago
Best ResponseYou've already chosen the best response.25 *1 = 5 5*2 = 10 5*3 = 15 5*4 = 20 what comes next?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.25 is the square root of 25 because 5 * 5 = 25 x^2 = 25 so x = 5

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2actually there is 2 answers 5 and 5 because 5*5 is also equal to 25

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Neat. Thanks for helping me i appreciate it :)

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2@kitty_lover1234 No . 25 is not the answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what do you think it is

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2also 5 write the answer as {5,5}

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2that is what is known as the 'solution set'. Written in curly brackets.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i see where i went wrong
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