can you please do numbers 1,2,3 and 7a, 7b,7c? thank you so much Solve each quad

Question

can you please do numbers 1,2,3 and 7a, 7b,7c? thank you so much

Solve each quadratic equation by completing the trinomial square and by factoring. x^2 - 6x = 27 x^2 + 10x - 11 = 0 x^2 - 12x - 1 = 0 Solve two of the three prior problems using factoring. Write down the standard form of a quadratic equation: Use question 5 to write the solution for x using the quadratic formula: Solve each of the following quadratic equations using the quadratic formula. Simplify all radicals. a) x^2 - 5x - 2 = 0 b) 2x^2 + 10x = 1 c) x^2 + 10/3 x = 2

Explanation / Answer

1. x2-6x =27

x2-6x-27=0

(x-9)(x+3)=0

x=9,-3

2. x2+10x-11=0

(x+11)(x-1)=0

x=-11,1

3. x2-12x-1=0

x=(-(-12)+-sqrt(144+4))/2

x=(12 +-sqrt148)/2=6+-sqrt37

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