Mathematics: 2. Solve for the values of x by factoring.

2. Solve for the values of x by factoring.

Ответ:

swordnewsnetwork

14.02.2022

x = - 3, x = - 6

Step-by-step explanation:

${x}^{2} + 9x + 18 = 0 \\ \\ {x}^{2} + 6x + 3x + 18 = 0 \\ \\ x(x + 6) + 3(x + 6) = 0 \\ \\ (x + 6)(x + 3) = 0 \\\\ x + 3 = 0 \: \: or \: \: x + 6 = 0 \\ \\ x = - 3, \: \: or \: \: x = - 6 \\ \\$

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Ответ:

wallsdeandre25521

18.08.2020

Mathematics

Cameron solution is not reasonable, because it must have 4 decimals points, not three.

Step-by-step explanation:

When calculating the area of the rectangular wall, we have to multiply 16.5ft(8.625ft), if we observe, we have 4 decimals in total. The multiplications results 142.3125. So, Cameron solution is not reasonable, because he only included three decimals points, instead of four.

$16.5ft(8.625ft)=142.3125ft^{2}$

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2. Solve for the values of x by factoring.

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