Question

Step-by-step explanation:

(3x+7)²+5=30

Answer 1

Step-by-step explanation:

${(3x + 7)}^{2} + 5 = 30 \\ {(3x + 7)}^{2} = 30 - 5 \\ {(3x + 7)}^{2} = 25 \\ {(3x + 7)}^{2} = {(5)}^{2} \\ square \: will \: be \: cancelled \: out \\ 3x + 7 = 5 \\ 3x = 5 - 7 \\ 3x = - 2 \\ x = - 2 \div 3$

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Answer 2

Step-by-step explanation:

a solid material of extremely low density, produced by removing the liquid component from a conventional gel.