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Question 4: (5 points) A developer wants to purchase a plot of land to build a house. The area of the plot can be described by the following ex (5a + 1) (5x - 8) where a is measured in meters. Multiply the binomials to find the area of the plot in standard form The area is square meters. In a few sentences, please explain how you arrived at your answer.Question 15: (2 points) Solve the quadratic equation by factoring. x2 + 6x - 16 = 0 Enter the exact answers. The field below accepts a list of numbers or formulas separated by semicolons (e.g. 2; 4; 6 or x + 1; x - 1). The order of the list does not matter. To enter va, type sqrt(a). = s://snhu.mobius.cloud/modules/unproctoredTest.Print