Question

21. (i) Simplify the expression and evaluate them: x(x-3) + 2 for x = 5. (12)​

Answer 1

Answer:

answer is 12

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Answer 2

HELLO MATE YOUR ANSWER IS HERE

simplify......

the expression was

$x(x - 3) + 2$

HENCE ..

$x {}^{2} - 3x + 2$

THEN

$x {}^{2} - 2x - x + 2$

THEN

$x(x - 2) - 1(x - 2)$

HENCE EXPRESSION WILL BE

$(x - 1)(x + 2)$

NOW EVALUATION...

$x = 5$

$(5)(5 - 3) + 2$

$(5 \times 2) + 2$

$10 + 2$

$= 12$