Answer:
(x+4)(x+30)
Explanation:
sorry i am late...
when the equation is x^2+bx+c=0
-b is the sum of the zeroes and c the product
so -34=-30-4 is the sum of the zeroes
120=30*4 is the product
so x^2+34x+120=x^2+30x+4x+120=x(x+30)+4(x+30)=(x+4)(x+30)
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