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Maths Puzzle
Numerical Ability
how do I solve 7 to the -4 exponent. what is the answer?
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book Other Question
{{{n^2-3n-18}}}
{{{x^2-16x+64}}}
{{{2x^2+7x+3}}}
{{{2a^2-7a+6}}}
{{{9y^2-16}}}
{{{3a^2+13a+4}}}
3x + 2y = 16
2x + y = 9