Question

find x if:-
x × (x+1)=240​

Answer 1

Answer:

Answer is 80

steps

2x+x=240

3x=240

x=240/3

x=80

Answer 2

Step-by-step explanation:

x×(x+1)=240

simplify both sides of equation

x2+x=240

subtract 240 from both sides

x2+x-240=0

factor left side equation

(x-15)(x+16)=0

set factor equal 0

x=15 or x=-16

answer

x=15 or x=-16

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