7. The adjacent sides of a rectangle are 6x2 + 7x2y + xy and 7xy - 52 + 9x2y. Find its perimeter.
8. The perimeter of a triangle is 7x - 17xy + 15y + 8 and two sides are 3x2 - 6xy + 4y - 5 and
272 - 9xy + y + 6. Find the third side of the triangle.
Answers
Answered by
0
Answer:
AreaofRectangle=(5x
2
+25xy+4y
2
)(2x
2
−2xy+3y
2
)
=10x
4
−10x
3
y+15x
2
y
2
+50x
3
y−50x
2
y
2
+75xy
3
+8x
2
y
2
−8xy
3
+12y
4
=10x
4
+12y
4
+40x
3
y−27x
2
y
2
+67xy
3
Answered by
0
Answer:
add 6x2 + 7x2y + xy and 7x2y - 52 + 9x2y ,then multiple with 2
simply it is the formula 2 (l+b)
Step-by-step explanation:
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