Hey guys, I have these two questions, which I am confused about. If anyone could help me I would be very grateful!

"Solve the following simultaenous equations using an analytical method (either elimination or by substitution of methods) and then check your answers by plotting their graphs on the same set of axes.

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second question

Find the roots of the following Quadratic equations using the methods specified:

by Factorisation

using the quadratic solution formula.