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NNADVOKAT [17]
3 years ago
10

Really help me please

Mathematics
1 answer:
Ivanshal [37]3 years ago
6 0
144 x 3= (D) 432

Hope this can help! :)

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Step-by-step explanation:

{4}^{x}  - 5( {2}^{x} ) + 4 = 0 \\   {({2}^{x})}^{2}    - 5( {2}^{x} ) + 4 = 0 \\  {u}^{2}  - 5u + 4 = 0 \\ (u - 1)(u - 4) = 0 \\ u = 1 \: or \: u = 4 \\  {2}^{x}  = 1 \: or \:  {2}^{x}  = 4 =  {2}^{2}  \\ x = 0 \: or \: x = 2

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Please help.Please show the formula,thanks.
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triangles are similar so, its sides and angles are comgruent.

side BC=side DE

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