The solution of the equation are; x = -16 or x = -4. so option A is correct.
A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.
Given equation;
x²+ 20 x + 100 = 36.
x²+ 20 x + 100 - 36 = 0
x²+ 20 x + 64 = 0.
x²+ (16 + 4)x + 64 = 0.
x²+ 16x + 4x + 64 = 0.
x(x + 16) +4 (x + 16) = 0.
(x+ 4) (x + 16) = 0
Thus, the solution of the equation are; x = -16 or x = -4.
Learn more about quadratic equations;
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