Are you sure about your solves??
I think correct answer is 6,
I don't know but the standard way is in the photo:
I think correct answer is 6,
I don't know but the standard way is in the photo:
7 (4g) + 3(5h) + 2(-3g); for g =1/2, h= 1/3
1 answer:
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→ 6x² - 2x - 20
→ 6x² + 10x - 12x - 20
→ x(6x + 10 ) - 2 (6x + 10)
→ (6x + 10) (x - 2) .
for
6x - 10 = 0
6x = 10
for x - 2
x = 2