Identify Terms: Identify the coefficients and constant term in the quadratic expression 5x2+75x+270. The coefficient of x2(a) is 5, the coefficient of x(b) is 75, and the constant term (c) is 270.
Find GCF: Look for a greatest common factor (GCF) that can be factored out from all the terms in the expression.The GCF of 5, 75, and 270 is 5.Factor out the GCF from the expression: 5(x2+15x+54).
Factor Out GCF: Now, focus on factoring the quadratic expression inside the parentheses: x2+15x+54. We need to find two numbers that multiply to give ac (5×54=270) and add up to b (15). The numbers that satisfy these conditions are 9 and 6, since 9×6=54 and 9+6=15.
Factor Quadratic Expression: Write the factored form of the quadratic expression using the numbers found in the previous step.The factored form is 5(x+9)(x+6).