exam Maths Puzzle Numerical Ability

solve: x^2+4x=3

a. -2.3, 0.3
b. -4.6, 0.6
c. -5.3, 1.3
d. -5.4, 0.4

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exam Other Question

can you show me how to solve #35 [3+(4b+1)]squared
and #39 [(xy+4)-6]squared Hi. Could you please help me with this problem? The problem is "find the foci for the hyperbola 2x to the second power - 4y to the second power = 36.
Please help. Thank you!