find the integers of the word problem stated above.
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Step-by-step explanation:
at first we have to common the 2 and take it off. then do middle term factor. and after common x in 1st case and -8 in 2nd case we proceed further. then (x+9)(x-8) both are independently equal to zero. and hence x=-9,8
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Answer:
2x²+2x-144=0
step 1. take common
2(x²+x-72)=0
so, common 2 become a zero
2. then equation left is
x²+x-72=0
formula of root is
d=(b²±√(b²-4ac))÷2a
d=. [ 1² ± √{1²-4×1×(-72) } ]÷2×1
root 1-:
d= (1+17)÷2 = 9
root 2-:
d= (1-17)÷2 = -8
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