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Veseljchak [2.6K]
4 years ago
15

+ 2 = 16" alt=" \sqrt{t + 3 } + 2 = 16" align="absmiddle" class="latex-formula">
can someone help me with these two problems?
{5x}^{2}  + 8x = - 3
Mathematics
1 answer:
bogdanovich [222]4 years ago
8 0
√(t + 3) = 14 ← -2 both sides
  t + 3 = 196 ← square both sides
  t = 193  ← subtract 3 from both sides 

5x² + 8x + 3 = 0  ← put in standard form 

(5x + 3)(x + 1) = 0 ← factor

5x + 3 = 0 or x + 1 = 0 ←Zero product property

x = - \frac{3}{5}   or x = -1

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Answer:

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Step-by-step explanation:

We are given with right angle triangle QRS

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