Step-by-step explanation:
Hey, there!!
While simplifying the algebraic expression, you must be very careful about the signs.
Here,
(6x-4) (9x-2)
Multiply 2nd expression by 1st expression,
= 6x ( 9x - 2) -4 ( 9x - 2)

Opening brackets,

Simplifying them we get,

Therefore, the answer is 54x^2 - 48x +8.
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em>
(-2 + 0.8) ÷ (1²-1.3) =
(-1.2) ÷ (1-1.3)
(-1.2) ÷ (-0.3)
= 4
Answer:
Step-by-step explanation:
y = -2x - 3
7x - 5y = -6
7x - 5(-2x - 3) = -6
7x + 10x + 15 = -6
17x = -21
x = -21/17
y = -2(-21/17) - 51/17
y = 42/17 - 51/17
y = -9/17
(-21/17, -9/17)