exam Maths Puzzle Numerical Ability

How do you write this in standard form: (5, -3),y=4x+2?

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exam Other Question

can someone please help me with these 2 problems i have
factor each expression
y2+6y-7
x2+10x+25
MAY I PLEASE SEE THE STEPS FOR SOLVING THIS SUBTRACTION PROBLEM
4X/(y^2z^3) - 7/(y^4z^4)