Mikel177 Mikel177

04-10-2018
Mathematics

contestada

If a^2-b^2=648 and (a-b)=24, what is the value of (a+b)

F.21
G.24
H.25
J.26
K.27

If a2b2648 and ab24 what is the value of ab F21 G24 H25 J26 K27 class=

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jiangjacky1234ozqz8r jiangjacky1234ozqz8r

07-10-2018

K.27. This is because if you were to factor a^2-b^2, you get (a+b)(a-b)=648. If you substitute a-b for 24, it would lead the equation to be 24(a+b)=648. Divide 24 from both sides to get the answer.

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