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natulia [17]
3 years ago
9

Calculate the value of 4x2 + xy when x = 3 and y=-2.

Mathematics
1 answer:
Alchen [17]3 years ago
4 0

Answer:

Step-by-step explanation:

4x squared + xy

4x(4x) + xy

12(12) + 3 x 2

144 + 6

= 150

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The second of two numbers is 3 less than twice the first. Their sum is 36. Find the numbers.
o-na [289]

Answer:

13 and 23

Step-by-step explanation:

create an equation to solve:

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3 years ago
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The length of the base of an isosceles triangle is x. The length of a leg is 4x-6. The perimeter of the triangle is 60. Find x.
lbvjy [14]

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