The value of 9xsquare +49ysquare +42xy ,when x=15 and y=3 is ? Please give answer
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9x^2+49y^2+42xy
=(3x+7y)^2
=(3×15+7×3)^2
=(45+21)^2
=66^2
=4356
=(3x+7y)^2
=(3×15+7×3)^2
=(45+21)^2
=66^2
=4356
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Answered by
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9 x square + 49 y square + 42 xy
x = 15
y = 3
9(15) square + 49(3) square + 42 (15) (3)
2025 + 441 + 1890
=4356
hope so this is correct.
x = 15
y = 3
9(15) square + 49(3) square + 42 (15) (3)
2025 + 441 + 1890
=4356
hope so this is correct.
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