Hey can you pls solve this question. x x × 12 = 144
Answers
Answer:
Step-by-step explanation:
Simplifying
x2 + 12x = 144
Reorder the terms:
12x + x2 = 144
Solving
12x + x2 = 144
Solving for variable 'x'.
Reorder the terms:
-144 + 12x + x2 = 144 + -144
Combine like terms: 144 + -144 = 0
-144 + 12x + x2 = 0
Begin completing the square.
Move the constant term to the right:
Add '144' to each side of the equation.
-144 + 12x + 144 + x2 = 0 + 144
Reorder the terms:
-144 + 144 + 12x + x2 = 0 + 144
Combine like terms: -144 + 144 = 0
0 + 12x + x2 = 0 + 144
12x + x2 = 0 + 144
Combine like terms: 0 + 144 = 144
12x + x2 = 144
The x term is 12x. Take half its coefficient (6).
Square it (36) and add it to both sides.
Add '36' to each side of the equation.
12x + 36 + x2 = 144 + 36
Reorder the terms:
36 + 12x + x2 = 144 + 36
Combine like terms: 144 + 36 = 180
36 + 12x + x2 = 180
Factor a perfect square on the left side:
(x + 6)(x + 6) = 180
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Answer:
x x×12=144
= 12×12=144
Step-by-step explanation:
Because 12 sq. is 144
That's why 12×12=144