exam Maths Puzzle Numerical Ability

I have been struggling with this math problem for awhile now and I was wondering if anyone could help me? I would deeply appreciate it!! Please and Thank you!!

Multiplying Polynomials

Solve.
(x-3)(x+7)-(x+1)(x+5)=0

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exam Other Question

Please help me solve this: Clifford "TI" Harris went on a weekend trip. He averaged 35mi/h in the city and 60mi/h on the highway. If the 150mi trip took 3hrs, how much of the time was he driving in the city. Find the slope and y- intercept for the graph of 4x-y=3