Question

write the following equations in the form
${a}^{2} + bx + c = 0$
then write the value of a,b,c for each equation

1)
${x}^{2} - 9 = 13$
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Answer 1

Answer:

x^2 - 9=13

x^2 - 9 - 13=0

x^2 - 23=0

x^2 + 0x - 13=0