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Ok Father and Dauther need help with the following x2 + 8x = 180 by completing the square. Thank in advance
 2 years ago
 2 years ago
Ok Father and Dauther need help with the following x2 + 8x = 180 by completing the square. Thank in advance
 2 years ago
 2 years ago

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Deanna15Best ResponseYou've already chosen the best response.0
i have my teachers lesson in front of me and the homework answer too; which is 18, 11i don't know how they got that
 2 years ago

amistre64Best ResponseYou've already chosen the best response.2
to complete a square we simply have to add a useful add the square of half the x coeff to each side of the equation 8/2 = 4; and 4^2 = 16
 2 years ago

kantalopeBest ResponseYou've already chosen the best response.0
the thing to remember for completing the square is (b/2)^2 b over 2 squared you need to add that to each side....awww amistre beat me too it but b is the second term in the trinomial in the form a^2 + b
 2 years ago

amistre64Best ResponseYou've already chosen the best response.2
x^2 + 8x + 16 = 180 + 16 compact the square (x+4)^2 = 180 + 16 sqrt each side x+4 = + sqrt(176) subtract the 4 x = 4 + sqrt(176)
 2 years ago

AvvaBest ResponseYou've already chosen the best response.1
the answer should be 10 or 18
 2 years ago

AvvaBest ResponseYou've already chosen the best response.1
you can check the answer by solving the equation on the calculator ;)
 2 years ago

Deanna15Best ResponseYou've already chosen the best response.0
but then how would u solve a similar eqaution tht =0 ?
 2 years ago
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