Answer:
4y²−38y−20
Step-by-step explanation:
(y−10)(4y+2)
=(y+−10)(4y+2)
=(y)(4y)+(y)(2)+(−10)(4y)+(−10)(2)
=4y²+2y−40y−20
=4y²−38y−20
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25 mg. = 2.5 cg.
25 mg. is less than 25 cg.
7.8=rational because rational numbers are numbers that can be in a fraction decimal whole etc.
Answer:
x=4+9i,:x=4-9i
Step-by-step explanation:
put it into the quadratic formula
x=-(b+/- sqr b^2-4ac)/2a
8+/- sqr 64-97/2
