exam Maths Puzzle Numerical Ability

I am trying to solve polynomial equations by factoring and i need help. The problem is (9t+11)(t+9)=79 Please help

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Could someone please show me how to worl this problem. I have figured it but cannot come up with the right answer. Factor out the GCF of 3x5 + 7x4. The 5 and 4 are exponents. Thank you. Determine the equation of the axis of symmetry for the parabola whose x - intercepts are (-3, 0) and (1,0).