Math Worksheets

Question: Help math solving equation…no real solution 10 points!!!?

I solved msot fo the problems on my worksheet it says:

Solve the equation or write no real solution. write the solution as integers if possible, otherwise write them as radical expressions.

With these…i keep ending up with positive/negative long numbers since each answer is usually positive and negative the positive sign and negative sign under the poisitive.

I need help with these..

16-x^2=12
a^2=20
x^2+4=16
8-2x^2=-333x^2-8=21

Thanks.

Answer: 16 – x² = 12
x² = 4
x = ± 2

Answer: x = 2, – 2
———–
a² = 20
a = ± √20 or ± 4.472136

Answer: a = ± √20 OR a = ± 4.472136
———–
x² + 4 = 16
x² = 12
x = ± √12 OR ± 3.4641017

Answer: x = ± √12 OR x = ± 3.4641017

Subtracting Integers – YourTeacher.com – Math Help