DeliyahN528237 DeliyahN528237
  • 03-11-2022
  • Mathematics
contestada

4(2a+1)-7a-4-3 a=4/8 * 2/8 + 1 - 7 a - 4 - 3

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ArizbethK656977 ArizbethK656977
  • 03-11-2022

Given data:

The given expression is 4a(2a+1)-7a=4-3.

The given expression can be written as,

[tex]\begin{gathered} 4a(2a+1)-7a=4-3 \\ 8a^2+4a-7a=1 \\ 8a^2-3a-1=0 \\ a=\frac{+3\pm\sqrt[]{(-3)^2-4(8)(-1)}}{2(8)} \\ =\frac{+3\pm\sqrt[]{41}}{16} \\ =0.5877,\text{ -0.2127} \end{gathered}[/tex]

Thus, the value of a are 0.5877, -0.2127.

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