Q. 205.0( 3 Votes )

# Find the values o

Answer :

Given two matrices are equal .i.e, A = B. We know that if two matrices are equal then the elements of each matrices are also equal.

x + 10 = 3x + 4

x – 3x = 4 – 10

– 2x = – 6

x = 3 …… (1)

And y2 + 2y = 3

y2 + 2y – 3 = 0

y2 + 3y – y – 3 = 0

y(y + 3) – 1(y + 3) = 0

(y + 3)(y – 1) = 0

y = – 3 or 1 …… (2)

And y2 – 5y = – 4

y2 – 5y + 4 = 0

y2 – 4y – y + 4 = 0

y(y – 4) – 1(y – 4) = 0

(y – 4)(y – 1) = 0

y = 4 or 1 ……(3)

The common value is x = 3 and y = 1

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