It's a maths question worth 4 marks

17.   First expand the left side:-

(2x + 1)(ax + b)

= 2ax^2 + ax + 2bx + b

= 2a x^2 + x(a + 2b) + b  =  6x^2 - 5x + c.

Comparing coefficients:-

2a = 6  so  a = 3

a + 2b = -5

3 + 2b = -5

2b = -5 - 3 = -8

b = -4

Also b = c, so c = - 4

 a = 3, b = -4 and c = -4

mark brainliest

step-by-step explanation:

2 tens + 6 ones

1 ten + 16 ones

0 tens + 26 ones

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.