Question 170220
square root sign 9x+67=x+5 (solve)
sqrt(9x+67) = x+5
Square both sides to get:
9x+67 = x^2+10x+25
Rearrange:
x^2+x-42 = 0
Factor:
(x-7)(x+6) = 0
x = 7 or x = -6
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Rewrite with a rational exponent small 6 square root sign 19.
Ans: 19^(1/6)
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Convert to decimal notation 8.87*10^7. I had 8870000000. (I know this is incorrect)
Ans: 8.87*10^7= 887*10^5 = 88700000
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Use rational exponents to write xy small 5*y small 1|6 (1&6 are small numbers)*2 small 1|3 (1&3 are small numbers)
Comment: That is too confusing for me.
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Cheers,
Stan H.