exam Maths Puzzle Numerical Ability

1. 5(x - 2)^2=3

2. Find the x-intercepts. y = x^2 + 3x - 8

3. Find the axis of symmetry. "y = x^2 - 5 + 10"
4. Solve. (x - 3)^2 = 6

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exam Other Question

please help me with this problem i forgot how to do this over the summer.
|2n-7|< with this underneath_0 Solve the system by substitution.
3x - y = -7
x + y = -9

Help!! I am pulling my hair out! :0) I need help with substitution, I am not understanding. Can someone please help me. Thanks.