exam Maths Puzzle Numerical Ability

X2( THE 2 IS AN EXPONENT) +6X+8= _____.

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exam Other Question

Hi,
Can you help me with this math problem?

13.) Solve the system.

4x2 - 4y2 = 20
3x2 + 2y2 = 35

The answer should be {(3, 2), (-3, 2), (3, -2), (-3, -2)} Rewrite the equation to standard form?
-16x^2-128x+12y^2-48y-400