book Maths Puzzle Numerical Ability

How do I solve the equation y=square root of 3y+10?

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please help me solve this equation: 2x^2+4x=-2 Factor the following expression as a difference of squares.

1. c^2 - 6cd + 9d^2 - 4
2. a^2 + 4a + 4 - b^2
3. 4- (2a + 3b)^2

Factor the following. Check by multiplying facto