Y=2x+3
Answer: y=13
Step-by-step explanation:
y=13
Step-by-step explanation:
given that,
x=5
to find,
y=2x+3, when x=5
substitute 5 in the place of "x" we get,
y=2×5+3
according to BODMAS rule( bracket of division multiplication addition and subtraction) first we have to multiply 5 with 2 and then add the product with 3 we get,
y=10+3
y=13
Answer: The value of y is 8
Step-by-step explanation:
Since we know x=2 we can sub in 2 for x in the equation
y=2(2)+4
y=4+4
y=8
(5x + 8)(5x − 8)
(5x − 4)(5x − 4)
(5x − 8)(5x − 8)
The product that is equivalent to the given expression is: A. (5x-4)(5x+4)..
Equivalent expressions are expressions that have equal value when simplified.
(5x-4)(5x+4) is equivalent to 25x² – 16 because if we expand we would have:
5x(5x+4) -4(5x+4)
5x² + 20x - 20x - 16
Add like terms
25x² – 16
Therefore, the product that is equivalent to 25x² – 16 is: A. (5x-4)(5x+4).
Learn more about equivalent expressions on:
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Answer:
Step-by-step explanation:
9. f(g(-n))
g(-n) = -(n²+5) = -n²-5
f(g(-n)) = 2n+1 (-n²-5 )
2n(-n²-5)+1(-n²-5 )
-2n³-10n-n²-5
-2n³-n²-10n-5
n²(-2n-1) +5(2n-1)
(n²+5)(2n-1)
10. (2x+2)(x³+3)
2x(x³+3)+2(x³+3)
2x⁴ + 2x³ +6x +6
2x³(x+1)+6(x+1)
(2x³+6)(x+1