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3 years ago

Solve for the value of X squared.

Mathematics

2 answers:

slega [8]3 years ago

8 0

Step-by-step explanation:

x² + y² = 153 and y = -4x.

=> x² + (-4x)² = 153

=> x² + 16x² = 153

=> 17x² = 153

=> x² = 9.

Serga [27]3 years ago

4 0

Answer:

x² = 9

Step-by-step explanation:

x² + y² = 153 ----------------------(I)

y = -4x ----------------------(II)

Plugin y = -4x in equation (I)

x² + (-4x)² = 153

x² + 16x² = 153

17x² = 153

x² = 153/17

x² = 9

x = √9

x = 3

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